Here is a list of medieval references for John Newburgh who died in 1443. Some references (e.g. Hutchings) put two John Newburghs here in the genealogy, but from evidence included here, I believe this ws unlikely. Firstly, there is no Inquisition Post Mortem record between 1381, when this man's father died, and 1443; if there had been two John Newburghs during this interval, there should have been an IPM entry when the first of them died. Secondly a careful look at the dates suggest just one John Newburgh; it is recorded that this John was 10 years old in 1381 when his father died, and so was born in 1371. The next John Newburgh, who succeeded in 1443, was 41 years old at that date, so was born in 1402. Two generations between 1371 and 1402 is just possible but rather unlikely. The final (and in our view conclusive) evidence comes from another IPM entry, dated 1443, for John Tiptoft, lord Tiptoft & Powys; this entry accurately recites the generations of the Poyntz and Newburgh families, and states that the son of the John Newburgh who died in 1381 (i.e. this John Newburgh) was still alive in 1443.

If we accept that in this period, 1381 to 1443, there was one John Newburgh who held Winfrith and East Lulworth, then we conclude from evidence here that he married twice, firstly to Edith atte More (still alive in 1422), and secondly to Joan Delamare (before 1423). Edith was the mother of the the next John Newburgh, who is called John junior in some references, and who succeeded when this John died in 1443. Edith was also mother to two girls, Joan and Agnes. This John's father, also John, died in 1381, but this John had a guardian appointed until he reached majority in 1392.

Because John junior, the son of this John, reached maturity well before his father died, there are a number of references that might refer to either John, father or son. Some references in this period are explicit, referring to John senior or John junior, but others are ambiguous. I have included all of these references, that just refer to John Newburgh, in this list; be advised that some could in fact refer to the son.

The references are listed in date order. Actual quotes are in italics.

# Document Date Text Notes
  Inquistions post mortem [i]
Vol 15 page 228
8 Feb 1382 Hawise, late the wife of Thomas de Neuburgh
Dorset. Inq taken at Bemynstre, Monday the morrow of St Matthew, 6 Ric II. She held the undermentoned manor to her and the said Thomas, now deceased, and the heirs of their bodies, by a fine levied in the king’s court in 11 Edw III with the king’s licence.
Wynfred Neuburgh. The manor, held of the king in chief by knight’s service and by payment of 10s yearly to the sheriff of Dorset.
She died 21 January last. John Neuburh, aged 10 years and more, son and heir of John de Neuburgh, deceased, her son by the said Thomas, is her heir
Death of John's grandmother, Hawise. John is shown as aged about 10.
  Inquistions post mortem [i]
Vol 15 page 229
12 Feb 1382 John Neuburgh, knight
Dorset. Inq taken at Bemynstre, Monday the morrow of St Matthew, 6 Ric II. He held the undermentioned manor of Estlulleworth in his demesne jointly with Margaret, his wife, who is still living. He held the undermentioned manor of Horsyth in his demesne jointly with the same Margaret, to wit, to him and her and his heirs.
Estlulleworth. The manor, held of Bernard Brocas, knight, by knight’s service. Horsyth. The manor, held of the abbot of Glastonbury by knight’s service.
He died on 5 June, 4 Ric II. John Neuburgh, aged 10 years and more, is his son and heir.
Writ to the escheator to certify the king in the Chancery as to the cause of the arrest and detention of John son and heir of John Neuburgh, knight. 30 Oct, 5 Ric II.
Dorset. Certificate by the escheator that, because it was found by an inquisition taken before Adam ate More, late escheator, and also by another inquisition taken by himself, that Thomas de Neubourgh, knight, grandfather of the said John, without the king’s icence demised certain lands etc. in Wynfred Neubergh which are held of the king in chief do divers tenants, to hold of him and his heirs for life, therefore the said lands etc. were seized into the king’s had and remain there, as appeared by the account of Thomas de Wellyngton, late escheator, and also by the said inquisition taken by himself; and that because John de Neuburgh, knight, son and heir of the said Thomas, died in his (the escheator’s) time in seisin of the fee of the said lands etc., the aforesaid John his son and heir a minor, therefore he (the escheator) arrested the said heir and detained him the king’s hand as his ward.
Death of John's father, also called John.
  Patent Rolls [g]
1381-85 page 94
7 Feb 1382 Grant to William Bonevyll, knight, and John de Fitelton, of the custody, during the minority of the heir of John de Neburgh, of the manor and hundred of Wynfred Neburgh, co. Dorset, in the king's hands by the death of Hawise, late the wife of Thomas de Neburgh, and by reason of the said minority, with the marriage of the heir, they paying £300 at the Exchequer. Award of guardianship of John
  Patent Rolls [g]
1381-85 page 333
20 Nov 1383 Pardon, for one mark paid in the hanaper, for the alienation in the late reign, without licence, by Thomas, son and heir of Robert de Neuburgh, who held the manor of Wynfred Neuburgh of the late king in chief, of divers parcels thereof to the following persons for life, viz. 18 acres of land to William Jatte, a messuage and 18 acres of land to Alice Holdych, and the like to Henry Gilmyn, William Codde, Richard Duryng, Richard Foet, William Fynyan and John Colyns, severally, a messuage and six acres of land to Roger Roules, and a messuage and twelve acres of land to John Bagge; and grant of the premises in fee tail to John, kinsman and heir of the said Thomas and to Hawise, his wife. Various parts of Winfrith had been leased for life without licence by Thomas, John's grandfather.
  Feet of Fines [j]

Volume 10, Page 179, Entry 247
1392 Grant of tenancy of part of the manor of Stokewode and other land, by John Neuburgh to William and Margaret Payn.

This entry is repeated on page 217 as entry 96
John would have reached his majority in about 1392, but there is no direct record. This entry confirms that he had taken direct ownership.
  Feet of Fines [j]

Volume 10, Page 230, Entry 122
1397 Grant of the manors of Moreton and Buckland Ripers, and land in "Pudyll, Turbervyll, Nottyngton, Suthtatton and Wyntreborn Martyn" and the advowsons of Moreton and Buckland Ripers churches, by John Neuburgh to John and Margaret Frampton.  
  Close Rolls [f]
1396-99 page 388
17 Jul
1398
To the sheriffs of London. Writ of supersedeas omnino, by mainprise of John de Popilton, John Pygot clerks, John Werkesworth and John Wyther of Yorkshire, in respect of taking of John Neweborgh otherwise Neweburgh any security for keeping the peace upon the averment of John Walkyngton chaplain, otherwise called John Walkyngton clerk, or any of the lieges.  
[37] Close Rolls [f]
1405-09 page 501
20 May 1409 William Payn, John Neweburgh of Dorset, Gilbert Newburgh and William Barry of Somerset to Dame Alice de Bryan, sometime wife of Guy son of Guy de Bryan knight. Recognisance for £200, to be levied etc. in the counties aforesaid.
William Payn, John Neweburgh of Dorset, Gilbert Newburgh and William Barry of Somerset to Dame Alice de Bryan (as above). Quitclaim tripartite with warranty for her life of the manor of Sutton Poyntz and the hundred of Culfordestre co. Dorset; and condition that this warranty shall extend only to barring them and their heirs, and not to voucher of warranty, nor to recovery of the value, or to compel them to make up the value, in case the premises be recovered against her.
John Newburgh and others leaving Sutton Poyntz, in exchange for payment from Alice de Bryan. It is not clear how this fits with other references, but it appears to indicate some dispute about Alice de Bryan's title to Sutton Poyntz. This John Newburgh is almost certainly the son of the John Newburgh who married one daughter of the last Nicholas Poyntz; William Barry is almost certainly the son of the John Barry who married Nicholas Poyntz's other daughter. They and others agree to allow Alice's title to Sutton Poyntz for her lifetime.
  Patent Rolls [g]
1416-22 page 72
16 May 1416 The like [commission of array on information that the king's enemies of France with'many of Genoa and others intend to invade the realm] to the following: John Arundell of Lychet Mautravers, ' chivaler,' Humphrey de Stafford, ' chivaler,' John Moine, ' chivaler,' John Frampton, esquire, John Neuburgh, esquire, William Payn, esquire, John Fauntleroy and Walter Biere, in the county of Dorset.  
  Feet of Fines [j]

Volume 10, Page 296, Entry 32
1421 Sale of land (currently tenanted by Agnes Frye) in Wareham and Wyrgrede by John Neuburgh of East Lulworth and Robert Rempston of Godlingston in Purbeck, to Richard Byle of Wareham.  
  Inquistions post mortem [i]
1-5 Hen VI page 543 & 11-15 Hen VI page 419
4 Mar 1422 Entry for Robert atte More, naming his heir as his daughter Edith, wife of John Neuburgh junior.

A later entry dated 2 June 1436 for Robert's wife Joan lists property in Bere held for life, with reversion to John Newburgh's daughters Joan and Agnes.
From this, we know that John Newburgh's first wife Edith was still alive in 1422, but dead by 1436.

The reference to John Newburgh junior is confusing - the two entries leave it unclear which John Newburgh was married to Edith and father to Joan and Agnes.
  Feet of Fines [j]

Volume 10, Page 299, Entry 17
1423 Sale of property in Somerset amd Dorset, including the manor and advowson of Stokwode and part of the manor of Broadwey, by John and Joan Neuburgh of East Lulworth, to William Raynauld, clerk and others.  
  Feet of Fines [j]

Volume 10, Page 300, Entry 45
1425 Grant of various manors to Ralph and Alianora Busshe for her life, and then to John Chydyok. The manors include East Chelborough, owned by John Neburgh and others.  
  Inquistions post mortem [i]
6-10 Hen VI page 198 & 11-15 Hen VI page 151
3 Jun 1426 Enty for William Payn, holding houses and land of John Neuburgh senior in Gatemerston, Winfrith Newburgh and West Burton.

The second entry, dated 29 May 1430, for William's widow Agnes, lists the same properties.
Gatemerston is said to have been abandoned because of a fire, and probably corresponds with Burngate, between West and East Lulworth.
  Book of Aids [e] 1428 Dorset. Hundred of Wynfred. From John Faunteleroy and John Newburgh for half a fee in Combecanes, that John atte Hale formerly held; 3s. 4d. From John de Novo Burgo, senior, for second part of a fee in Est Lulleworth, that formerly was of John Newbourgh; 4s. 5d. Hundred of Colyfordestre. From John Newburgh and John Stourton for one fee in Brode Wey, that John de Tydelmyngton formerly held; 6s. 8d. Hundred of Bokelond. From John Newburgh for fourth part of a knight's fee in Wotton Glaunvyle, otherwise Wolverne Wotton, that Sibilla de Glaunvyle formerly held; 20d.
Somerset. Hundred of Kynmersdon. From the heir of John de Newbyry for a quarter part of a knight's fee in Lokyngton, that John de Newebury formerly held; 20d.
Wiltshire. Hundred of Selkeley. John Newburgh holds from the earl of Salisbury various lands and tenements in Rokele, that once was of Robert Russell, for one knight's fee.
Working out which John is which is not easy! I have made my best guess, based on the assumption that the returns for different places will not necessarily name people consistently. 
  Dorset History Centre D/WLC/T 157 16 Oct 1428 16 Edward III. Writ. Cites final concord of 1330 in which Hugh Poyntz of Corymalet (Curry Mallet, Somerset) querent, and Nicholas Poyntz, parson of the Church of the Blessed Mary of Hoo (Kent) and Hugh de Melyplassh, parson of the church of Corymalet, deforciants, agreed concerning the manor of Rocklegh in Wiltshire (held by John Godhyve ? for his life), and the manor of Sutton Poyntz, (held by Roger de Chaundos and wife Matilda as her dowry from said Nicholas). Remainder to Hugh's sons Nicholas, Hugh, Walter, Henry, Thomas. Writ states that Matilda and Hugh Poyntz are now dead, also their son Nicholas, and that certain men called Richd. Neuton, Robt. Caundyssh, Robt. Corf, clerk, Peter Dormun (?), clerk, and William Ketyll now hold the manor. They are to appear at Westminster to state why John Neuburg senior, kin and heir of Nicholas Poyntz, should not have the manor of Sutton Poyntz The Dorset History Centre index dates this to 1342 (16 Edw III), but this date does not make sense in the context (Nicholas Poyntz had not died, and John Newburgh junior had not yet been born). The description of John Newburgh as "senior" makes it is almost certain that this dates to 1428 (16 Hen V). The document itself is not clear.

This references the agreement dated 1330 (see above), whereby the manors of Sutton Poyntz and Rockley in Wiltshire are granted eventually to the next heir of Hugh Poyntz. At this stage, Hugh and his son Nicholas have both died. The writ concludes that the manor of Sutton Poyntz should therefore go to Nicholas's grandson John Newburgh.
  Close Rolls [f]
1429-35 page 67
13 Jun 1430 [Demise of the manor of Fyssherton in Wiltshire, to John Poulet, heir to his cousin Ellis Delamare,with remainder to Walter Hungerford, lord of Heytesbury and Homet, and then remainder to Joan Delamare wife of John Newburgh esquire]  
  Close Rolls [f]
1429-35 page 95
11 Nov 1430 Nicholas Geel of Suthwerke otherwise called Sponemaker, who has taken to wife Katherine daughter and heir of Alice Gylmyn of Warham co. Dorset, to John Neuburgh the elder, his heirs and assigns. Quitclaim with warranty of the manor of 'Estlolleworth ' and two carucates of land, and of all other lands, rents, services and reversions in 'Estlolleworth' and Knolle whereof the said John is seised to him and his heirs. Dated 11 November 9 Henry VI.

William Hore, who has taken to wife Isabel daughter and heir of Alice Gylmyn of Warham co. Dorset, to John Neuburgh the elder, his heirs and assigns. Quitclaim with warranty of the manor of 'Estlolleworth' and two carucates of land, and of all other lands, rents, services and reversions in 'Estlolleworth' and Knolle which the said John has to him and his heirs.
 
  Book of Aids [e] 1431 [Appointment of John Neuburgh, senior, and others as tax jurors]
Dorset. Wynfred. John Neuburgh, of Est Lulleworthe in the foresaid county of Dorset, esquire, holds the foresaid manor of Est Lulleworthe in that hundred, by service of a quarter part of a knight's fee. The foresaid John Neuburgh holds the manor of Wynfreth Neuburgh in the same hundred, for a great serjeanty, valued at 10 marks per annum. Colyfordestre. John Stourton, of Stourton in Wilts, knight, and John Neuburgh, junior, of Estlulleworthe in the county of Dorset, esquire, hold various lands and tenements in Brodeweye in that hundred, for one knight's fee. Neweton and Bouclond. John Neuburgh, junior, of Lulleworthe in the county of Dorset, esquire, halds the manor of Glamvyleswotton in that hundred, for the service of a quarter part of a knight's fee.
 
  Patent Rolls [g]
1429-36 page 134
12 Apr 1431 The like [commission, pursuant to Act of the last Parliament [Rolls of Parliament Vol. IV, pp. 369, 370] and to three or more of them, to ascertain the persons liable to contribute, to the grant made by the said act and the amounts for which they are liable] to the following in the following counties and towns: Humphrey Stafford, ' chivaler ', John Neuburgh the elder, John Stork, Thomas Huseer, Robert Rempston William Gerard, the sheriff; Dorset  
  Close Rolls [f]
1429-35 page 328
18 Oct 1434 [Order to escheator of Somerset and Dorset, concerning manors of ‘Estchelburgh’ in Dorset and Alwyneshey in Somerset, granted by right of inheritance to John Chydyoke. John Neburgh is named as party to an earlier fine concerning the properties]  
  Feet of Fines [j]

Volume 10, Page 345, Entry 29
1435 Sale of manor and advowson of Wootton Glanville by Matilda Manston and a group of people including John Neuburgh junior, to John Hody and a group of people including John Neuburgh senior.  
  Patent Rolls [g]
1429-36 page 134
3 Apr 1435 Commission to John Stork and William Brownyng setting forth that, on behalf of John Barbu and other merchants of Brittany, complaint has been made to the king that they recently loaded a ship called Sawostane de Garant, of which the said John is owner, with salt, linen cloth and other goods, and sailed in her from Brittany to Waymouth, but when the ship arrived, one John Neuburgh, with his men and servants, asserting that the complainants had come in rebellious and warlike manner, and that the said salt and other goods belonged to the king's enemies, seized the ship and carried off the goods; and appointing them to arrest the ship and enquire into the facts of the case.  
  Fine Rolls [h]
Vol 16 page 260
9 Nov
1435
[Appointments as tax assessors,to John Newburgh senior among others]  
  Patent Rolls [g]
1429-36 page 520
18 Jan 1436 The like [commission of array] to the following in the following counties:
Humphrey Stafford, knight, John Stourton, knight, John Chedeyok, knight, William Carant, John Latymer, John Neweburgh, John Herynge, Thomas Thame, Robert Turgeys; Dorset
 
  Patent Rolls [g]
1436-41 page 269
24 Feb 1439 Commission to John Neuburgh the elder, John Stork, Robert Hillary, Robert Rempston and the sheriff of Dorset, reciting that on behalf of the burgesses of Dorchestre, complaint has been made to the king that, whereas they hold their borough of him at a fee farm rent of £20 and certain liberties, free customs and quittances have of ancient time pertained to that borough and the burgesses, on account of certain impediments, excesses and grievances lately done to them in divers towns and places in the county many of the richer men have withdrawn from the borough and those remaining are so disturbed by arrest of their goods in the said places and towns for want of defence of the free customs and liberties granted and confirmed to them by the king, that they are also likely to be compelled to quit their domiciles, and so the borough will be abandoned and the payment of the fee farm will entirely cease.  
  Close Rolls [f]
1435-41 page 388
10 Jul 1440 William Tanner chaplain to William abbot of Shirborne. Recognisance for £200, to be levied etc. in Dorset. Condition, that he shall abide and perform the award of William Carent esquire, John Storke, John Neburgh and William Boefe or three of them, William Boefe being one, concerning all actions, offences and debates between him and the abbot or any of his servants, and if those arbitrators may not agree, he shall appear in person in chancery on the morrow of All Souls next, and render himself to the Flete prison. Proviso that such award shall be made under seal of the arbitrators before the quinzaine of Michaelmas next.
Cancelled, for that William Tanner did fulfil all these conditions.
 
  Inquistions post mortem [i]
21-25 Hen VI page 49
31 Jan 1443 A very long entry for John Tiptoft, lord Tiptoft & Powys, provides in passing a long exposition on the Poyntz family inheritance. The relevant part is listed in full elsewhere This reference provides proof that, despite the gap of more than 60 years between the deaths of father and son, this John Newburgh was indeed the son of the John (died 1381) who married Margaret Poyntz.
  Patent Rolls [g]
1441-46 page 203
11 Jul 1443 Commission to Giles Daubeney and Thomas Beauchamp, knights, and John Neuburgh, Robert Warre, Robert Hillary and John Luty to make inquisition in Somerset touching all insurrections, rebellions, trespasses, misprisions, conspiracies, confederacies, contempts, alienations, gifts and acquisitions in mortmain without licence, encroachments and other offences in the county.  
  Fine Rolls [h]
Vol 17 page 275
2 Aug
1443
Writs of diem clausit extremum, after the death of the following persons, directed to the escheators in the counties named: John Neuburgh the elder; Somerset and Dorset. Death of John Newburgh
  Inquistions post mortem [i]
21-25 Hen VI page 150
20 Mar 1444 John Nebourgh senior
Heir John Nebourgh his son, aged 41 on 7 July 1444.
Somerset, Dorset. He held no lands or tenements in demesne in fee or in service of the king in chief or of others.
John seems probably to have passed his lands on to his son, although there is no direct evidence of this.