John Pomeroy of Barlynch Priory 

1424.  Who was John Pomeray of Barlynch and who were his parents  ? There are only questions. 

Could John have been unrecorded  brother of Baron Edward Pomeroy who inherited the barony after 1426  d 1446, son of William who was son of Thomas the 5th son of Henry & his Moels wife . Sir Thomas mentioned in a record dated 1372 ;  

- OR  his great Uncle John 3rd of the 5 sons of Henry Pomeroy  & Joanna Moels

or a son of one of those 5 brothers

Baron Sir Edward de la Pomerai, died 1446  (wife MARGARET BEVILLE d 1461 )
His heir was Henry who married  Alice Raleigh who gave him 4 sons & at least 2 daughters
2nd wife was Anna Camell  .  by whom he had a son Henry born 1481.

2nd son John Pomeroy  held Tregony by 1404 and was father to Robert who married Elizabeth Beaumont in about 1471 bringing the manor of Ingsdon in Ilisington near Ashburton into the family

Was John the monk of a later generation , a brother to Hugh Pomeroy of Tregony  2nd son of Sir Edward Pomeroy by Joan Sapcote;  He can be presumed to be younger sons but of whom?

Or could the be from the same origin as Troublesome Thomas ( notable date 1388 ) of the cadet line at Smallridge and Bockerell?

Tregoney Priory -  a house of Augustinian Canons , Regular ; an alien house: priory cell dependent on Le Val, Bayeux; founded before 1125(?); granted to Merton, Surrey 1267 The Priory Church of St James, Tregony-  Tregony Priory is long vanished source   

Barlinch Priory, Brompton Regis, West Somerset - Exmoor National Park &  a parish south of Minehead 

Genuki gives us

"BROMPTON REGIS, a parish in the hundred of Williton and Freemanners, in the county of Somerset, 3 miles to the N.E. of Dulverton.

On the banks of the river Exe it once contained a Dominican priory, founded in the reign of Henry II.
Brompton was anciently a hundred and a market town. 

Google   gives us  Barlynch Priory (also known as St Nicholas's Priory and sometimes spelled Barlich Priory) in Brompton Regis, Somerset, an Augustinian priory founded by William de Say between 1154 and 1189 and dissolved in 1537. 

 In the late 15th century the prior was John Chester, one of the sons of Alice Chestre who made donations to the church.

BHOL

1329 (fn. 10) Hugh, the prior, pleaded age and illness as a reason for resigning his office, and desired Bishop Drokensford speedily to grant a licence to the convent to elect a successor lest the goods of the impoverished house should be wasted.

In 1381 (fn. 11) licence was given to John Waskham (fn. 12) to alienate the glebe of Bradford, and give it and the advowson of Bradford Church to the prior and convent of Barlynch. This was again confirmed in the following year. (fn. 13)

In 1478 (fn. 14) William Hampney, the prior, and the convent of Barlynch received a grant of two yearly fairs at Bury, a hamlet of Brompton, a mile south of Barlynch, where formerly the Besils had a court-house on the eastern side of the Exe, together with a court of pie powder and all issues.¶

In 1532 (fn. 15) James Hadley of Withycombe in his will left 20s. to the Prior and convent of Barlynch, and also a bequest to his brother, Sir William, at Barlynch.

House of Lancaster & Henry VI -1422 to 1461 then 1461-1470 House of York & Edward IV  1470-71 - again Henry VI (The sleeping King ) - 1471-1483 then House of York & Edward IV who died in 1483 & was  followed by his brother Richard III until 1485. The Cousins Wars or Wars of the Roses

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St Nicholas Priory at Barlynch, an Augustinian cell of Cleeve Abbey, was founded in 1174-89 and dissolved c.1537. 

 Barlynch Priory  in Ashwick Parish in East Somerset, it  comprises all or part of the Mendip Hills villages or hamlets of Ashwick, Benter, Binegar, Gurney Slade, Neighbourne, Nettlebridge and Oakhill. Also known as St Nicholas's Priory, sometimes spelled Barlich Priory,  in Brompton Regis, Somerset was an Augustinian priory founded by William Johanese Say, between 1154 and 1189, dissolved in 1537.  In 1524 the priory was at its largest with nine cannons.

The only visible remains are some fragments of walling attached to Barlynch farmhouse, which have been designated as a Scheduled Ancient Monument , also some of the stained glass from a Jesse window at the Priory is now in the St Peter's Church in Huish Champflower.

 The village  https://en.wikipedia.org/wiki/Brompton_Regis

By the later 12th century Brompton Regis had been granted to William de Say, who founded Barlynch Priory in the west of the parish. In the 13th century it passed to the Besil family who had a Motte and Bailey castle  known as Bury Castle.[7]

There is a Bury Castle near Brompton Regis in  Somerset; an Iron Age  fort existed and was reused with the creation of a motte after the Norman Conquest.  It has been scheduled as an ancient monument.[1]

After passing out of the hands of the Prior of Barlynch, patronage of the parish was eventually given to Emmanuel College Cambridge in the late 16th Century. They still share patronage with the Bishop of Bath and Wells and Keble College, Oxford.