Margaret Bryan
Margaret Bryan, Baroness Bryan( c. 1468 – c. 1551/52) was Lady Governess to Henry VIII's children: Princess Mary, Princess Elizabeth, Henry FitzRoy and Prince Edward.
The position of Lady Governess in her day resembled less that of the popular modern idea of a governess, more that of a nanny.
She was born Margaret Bourchier in about 1468 in Beningbrough, Yorkshire, England.
Her mother was Elizabeth Tilney and her father was Sir Humphrey Bourchier, who was killed at the Battle of Barnet on 14 April 1471 during the series of dynastic civil wars known as the Wars of the Roses.
Humphrey Bourchier was heir to the title Baron Berners but having predeceased his father John Bourchier, 1st Baron Berners, Margaret's brother John instead succeeded to the title as second Baron Berners.
Humphrey Bourchier and Elizabeth Tilney had one further daughter who survived to adulthood.
Margaret's younger sister was Anne Bourchier( 1470 – 1530) who married Thomas Fiennes, 8th Lord Dacre in 1492.
Their son, also Thomas, was the 9th Lord Dacre who was executed for murder in 1541.
John Bourchier, 1st Earl of Bath
John Bourchier, 1st Earl of Bath( 20 July 1470 – 30 April 1539) was created Earl of Bath in 1536.
He was feudal baron of Bampton in Devon.
John Bourchier (bishop-designate)
John Bourchier( 1493- in/ around 1577) was bishop- designate of Gloucester, England.
Fulk Bourchier, 10th Baron FitzWarin
Fulk Bourchier, 10th Baron FitzWarin( 25 October 1445 – 18 September 1479) was the son and heir of William Bourchier, 9th Baron FitzWarin( 1407 – 1470) and the father of John Bourchier, 1st Earl of Bath.
He was feudal baron of Bampton in Devon.
John Bourchier, 1st Baron Berners
John Bourchier, 1st Baron Berners, KG (died May 1474) was an English peer.
Bourchier was the fourth son of William Bourchier, 1st Count of Eu, and his wife Anne of Woodstock, Countess of Buckingham, daughter of Thomas of Woodstock, 1st Duke of Gloucester.
Henry Bourchier, 1st Earl of Essex, and William Bourchier, 9th Baron FitzWarin "jure uxoris", were his elder brothers.
He was knighted in 1426 and in 1455 he was summoned to the House of Lords as "John Bourchier de Berners", which created the title of Baron Berners.
In 1459 he was further honoured when he was made a Knight of the Garter.
He also served as Constable of Windsor Castle from 1461 to 1474.
Lord Berners married Margery, daughter of Sir Richard Berners.
He died in May 1474 and was succeeded in the barony by his grandson John Bourchier, 2nd Baron Berners, his son Sir Humphrey Bourchier having been killed at the Battle of Barnet in 1471.
Margery, Lady Berners, died in 1475.
His daughter Joan Bourchier married Sir Henry Neville (d. 26 July 1469), son of George Neville, 1st Baron Latimer and Elizabeth Beauchamp, and had issue which included Richard Neville, 2nd Baron Latimer, father of John Nevill, 3rd Baron Latimer.
John Bourchier was buried at Chertsey Abbey, in the Runnymede borough of Surrey
Anne of Gloucester
Anne of Gloucester, Countess of Stafford (30 April 1383 – 16 October 1438) was the eldest daughter of Thomas of Woodstock, Duke of Gloucester, and Eleanor de Bohun.
John Bourchier, 2nd Baron Berners
John Bourchier, 2nd Baron Berners( 1467 – 19 March 1533) was an English soldier, statesman and translator.
Richard Neville, 2nd Baron Latimer
Richard Neville, 2nd Baron Latimer KB( c.1468 – c. 28 December 1530) of Snape, North Yorkshire, was an English soldier and peer.
He fought at the battles of Stoke and Flodden.
Richard Neville was the eldest son of Sir Henry Neville, who was killed on 26 July 1469 at the Battle of Edgecote Moor, and Joan Bourchier( d. 7 October 1470), daughter of John Bourchier, 1st Baron Berners, by Margery, daughter and heiress of Richard Berners, esquire.
He had a brother, Thomas Neville, and a sister, Joan Neville, wife of Sir James Radcliffe.
Neville's maternal grandfather, John Bourchier, 1st Baron Berners, was the fourth son of William Bourchier, 1st Count of Eu in Normandy, and his wife Anne of Gloucester, daughter of Thomas of Woodstock, youngest son of King Edward III.
By her second husband, Edmund Stafford, 5th Earl of Stafford, Anne of Gloucester was the mother of Humphrey Stafford, 1st Duke of Buckingham.
On his father's side, Richard Neville was the grandson of George Neville, 1st Baron Latimer( d. 30 or 31 December 1469), and Elizabeth Beauchamp, the daughter of Richard de Beauchamp, 13th Earl of Warwick.
Thomas Knyvett, 4th Baron Berners
Thomas Knyvett( or Knyvet)," de jure" 4th Baron Berners( 1539 – 1616), was High Sheriff of Norfolk from 1579.
Thomas Knyvett was the first son of John Knyvett( 1510 – 1561) and Agnes, daughter of Sir John Harcourt of Stanton Harcourt, Oxfordshire.
A native of Ashwellthorpe in Norfolk, Knyvett married Muriel Parry, daughter of Sir Thomas Parry, Comptroller of the Household to Queen Elizabeth I.
He inherited the Ashwellthorpe estates from his paternal grandmother, Jane Knyvett(" née" Bourchier)," de jure" 3rd Baroness Berners( daughter and heiress of John Bourchier, 2nd Baron Berners), on her death in 1561/ 2, along with rights to the title Baron Berners.
He was knighted in 1578 and created Lord High Sheriff of Norfolk in 1579.
He failed to formally claim the title Baron Berners until 1616, when the office of the Earl Marshall certified his" right and title to the Barony of Berners", but he died shortly thereafter, before the new king James I could confirm the title.
He was buried at Ashwellthorpe on 9 February 1616 /7.
Henry Bourchier, 1st Earl of Essex
Henry Bourchier, 5th Baron Bourchier, 2nd Count of Eu, 1st Viscount Bourchier, 1st Earl of Essex, KG( c. 1404/ c.
1406 – 4 April 1483), was the eldest son of William Bourchier, 1st Count of Eu and Anne of Gloucester.
On his mother's side, he was a great- grandson of Edward III of England.

Question: What is the date of birth of John Bourchier, 1St Baron Berners's mother?
Answer: 30 April 1383