3Humphrey de Bohun's birth year is uncertain although several contemporary sources indicate that it was 1276. His father was Humphrey de Bohun, 3rd Earl of Hereford and his mother was Maud de Fiennes, daughter of Enguerrand II de Fiennes and Isabelle de Conde. He was born at Pleshey Castle, Essex.
Humphrey de Bohun VIII succeeded his father as Earl of Hereford and Earl of Essex, and Constable of England (later called Lord High Constable). Humphrey held the title of Bearer of the Swan Badge, a heraldic device passed down in the Bohun family. This device did not appear on their coat of arms, (az, a bend ar cotised or, between 6 lioncels or) nor their crest (gu, doubled erm, a lion gardant crowned), but it does appear on Humphrey's personal seal (illustration).

Scotland
Humphrey was one of several earls and barons under Edward I who laid siege to Caerlaverock Castle in Scotland in 1300 and later took part in many campaigns in Scotland. He also loved tourneying and gained a reputation as an "elegant" fop. In one of the campaigns in Scotland Humphrey evidently grew bored and departed for England to take part in a tournament along with Piers Gaveston and other young barons and knights. On return all of them fell under Edward I's wrath for desertion, but were forgiven. It is probable that Gaveston's friend, Edward (the future Edward II) had given them permission to depart. Later Humphrey became one of Gaveston's and Edward II's bitterest opponents.
He would also have been associating with young Robert Bruce during the early campaigns in Scotland, since Bruce, like many other Scots and Border men, moved back and forth from English allegiance to Scottish. Robert Bruce, King Robert I of Scotland, is closely connected to the Bohuns. Between the time that he swore his last fealty to Edward I in 1302 and his defection four years later, Bruce stayed for the most part in Annandale, rebuilding his castle of Lochmaben in stone, making use of its natural moat. Rebelling and taking the crown of Scotland in February, 1306, Bruce was forced to fight a war against England which went poorly for him at first, while Edward I still lived. After nearly all his family were killed or captured he had to flee to the isle of Rathlin, Ireland. His properties in England and Scotland were confiscated.
Humphrey de Bohun received many of Robert Bruce's forfeited properties. It is unknown whether Humphrey was a long-time friend or enemy of Robert Bruce, but they were nearly the same age and the lands of the two families in Essex and Middlesex lay very close to each other. After Bruce's self-exile, Humphrey took Lochmaben, and Edward I awarded him Annandale and the castle. During this period of chaos, when Bruce's queen, Elizabeth de Burgh, daughter of the Earl of Ulster, was captured by Edward I and taken prisoner, Hereford and his wife Elizabeth became her custodians. She was exchanged for Humphrey after Bannockburn in 1314. Lochmaben was from time to time retaken by the Scots but remained in the Bohun family for many years, in the hands of Humphrey's son William, Earl of Northampton, who held and defended it until his death in 1360..


He was married to Elizabeth Princess Of ENGLAND on 14 Nov 1302 in Westminster, London, Middlesex, England.
Children were:
Margaret De BOHUN,
Eleanor De BOHUN,
Humphrey De BOHUN,
John De BOHUN Earl Of Hereford,
Agnes BOHUN ,
Margaret De BOHUN Countess Of Devo,
William De BOHUN Earl Of Northamp,
Edward De BOHUN ,
Aeneas De BOHUN,
Isabel De BOHUN.

Married 18 JAN 1297, Ipswich Priory Church, Suffolk to , John I of Holland, Count of Holland

Married 14 NOV 1302, Westminster Abbey, London, England to de Bohun, Humphrey, Earl of Hereford4 & Essex

Child 1: de Bohun, John of Hereford, Earl of Hereford9 & Essex, b. 23 NOV 1305
Child 2: de Bohun, Humphrey of Hereford, Earl of Hereford 10 Essex, b. 6 DEC 1309
Child 3: de Bohun, William of Northampton, Earl of Northampton, b. ABT 1311
Child 4: de Bohun, Alianore, b. 1304
Child 5: de Bohun, Margaret, b. 3 APR 1311
Child 6: de Bohun, Edward, b. ABT 1311
Child 7: de Bohun, Eneas, b. ABT 1314
Child 8: de Bohun, Edmund
Child 9: de Bohun, Hugh, b. ABT 1303
Child 10: de Bohun, Mary, b. 1305
Child 11: de Bohun, Isabella, b. 1316