Robert Capell, 10th Earl of Essex
Robert Edward de Vere Capell, 10th Earl of Essex( 13 January 1920 – 5 June 2005) was the 10th Earl of Essex.
Lord Essex was born in 1920, the son of Arthur de Vere Capell and Alice Currie.
His father died when he was three.
He spent some time in an orphanage, where he was bewildered when the head told him he would be the Earl of Essex someday.
This interest was revived when many years later, he received a newspaper clipping from a friend saying that the heir to the Earls of Essex might be an American, Bladen Horace Capell.
This led to an exhaustive search by de Vere Capell with much correspondence with many distant and formerly unknown relatives.
Eventually, he managed to prove that his great- grandfather Algernon Capell was the elder brother of Bladen's great- great- grandfather Adolphus Capell.
Capell married Doris Margaret Tomlinson, daughter of George Frederick Tomlinson, in 1942.
They had one child, Paul, later the 11th Earl of Essex.
When the 9th Earl died in 1981, it took eight years for Robert to be permitted to take his seat in the House of Lords, a seat which he lost due to the House of Lords Act 1999.
He died in 2005, and was succeeded as Earl of Essex by his son.
This chart shows the relation between the 9th Earl of Essex and the 10th Earl.
Henry Bourchier, 2nd Earl of Essex
Henry Bourchier, 2nd Earl of Essex, 6th Baron Bourchier, 3rd Count of Eu and 2nd Viscount Bourchier( died 13 March 1540) was an English soldier, peer and courtier at the courts of Henry VII and Henry VIII.
He married Mary Say, by whom he had one daughter, Anne, who became his heir.
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.
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.
Humphrey de Bohun, 2nd Earl of Hereford
Humphrey( IV) de Bohun( 1204 – 24 September 1275) was 2nd Earl of Hereford and 1st Earl of Essex, as well as Constable of England.
He was the son of Henry de Bohun, 1st Earl of Hereford, and Maud FitzGeoffrey.
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
Patrick Ruthven, 1st Earl of Forth
Patrick Ruthven, 1st Earl of Forth and 1st Earl of Brentford( c. 1573 – 2 February 1651) was a Scottish nobleman, general, and diplomat.
Geoffrey de Mandeville, 2nd Earl of Essex
Geoffrey de Mandeville, 2nd Earl of Essex( d 1166) was an English nobleman, the second son of Geoffrey de Mandeville, 1st Earl of Essex and Rohese de Vere, Countess of Essex.
Henry Percy, 1st Earl of Northumberland
Henry Percy, 1st Earl of Northumberland, 4th Baron Percy, titular King of Mann, KG, Lord Marshal( 10 November 134120 February 1408) was the son of Henry de Percy, 3rd Baron Percy, and a descendant of Henry III of England.
His mother was Mary of Lancaster, daughter of Henry, 3rd Earl of Lancaster, son of Edmund, Earl of Leicester and Lancaster, who was the son of Henry III.
William Bourchier, 1st Count of Eu
William Bourchier, 1st Count of Eu (1374-28 May 1420), was an English knight created by King Henry V 1st Count of Eu, in Normandy.

Question: When was Henry Bourchier, 1St Earl Of Essex's father born?
Answer: 1374