Humphrey de Bohun, 4th Earl of Hereford

Humphrey Bohun was an English noble who inherited his estate and titles from his father Humphrey de Bohun, 3rd Earl of Hereford. In 1301 he 1301, married the king's widowed daughter, Elizabeth, Countess of Holland. Being this closely related to the King Edward I (r. 1272-1307) and King Edward II (r. 1307-1327) greatly improved his fortunes. In 1306 he was granted valuable land and castles forfeited by Robert Bruce in Scotland and Essex.

Bohun served Edward II in fighting the Scots and the Welsh, and was rewarded with favors and help in bringing diplomatic pressure in Holland for payment of the dowry owing to him. However, he took up arms in rebellion against the king and paid for this with his life when he was killed in 1322, at the Battle of Boroughbridge.

At the time of his death he was worth £30,000, an amount equivalent to £6.6bn in 2010.