As his constable, Humphrey sided with the king during the Revolt of 1173–1174. Humphrey joined Henry the Young King in leading an army against Philip of Alsace, the Count of Flanders, in support of Philip II of France, in late 1181, on which campaign Humphrey died. He was buried at Llanthony Secunda.
Sometime between February 1171 and Easter 1175 Humphrey married Margaret of Huntingdon, a daughter of Henry, Earl of Northumbria, and widow since 1171 of Conan IV, Duke of Brittany. Through this marriage he became a brother in law of his enemy, William of Scotland. With Margaret he had a daughter, Matilda, and a son, Henry de Bohun, who in 1187 was still a minor in the custody of Humphrey's mother in England. It has been suggested that Humphrey's widow was the Margaret who married Pedro Manrique de Lara, a Spanish nobleman, but there are discrepancies in this theory.
As his constable, Humphrey sided with the king during the Revolt of 1173–1174. Humphrey joined Henry the Young King in leading an army against Philip of Alsace, the Count of Flanders, in support of Philip II of France, in late 1181, on which campaign Humphrey died. He was buried at Llanthony Secunda.
Sometime between February 1171 and Easter 1175 Humphrey married Margaret of Huntingdon, a daughter of Henry, Earl of Northumbria, and widow since 1171 of Conan IV, Duke of Brittany. Through this marriage he became a brother in law of his enemy, William of Scotland. With Margaret he had a daughter, Matilda, and a son, Henry de Bohun, who in 1187 was still a minor in the custody of Humphrey's mother in England. It has been suggested that Humphrey's widow was the Margaret who married Pedro Manrique de Lara, a Spanish nobleman, but there are discrepancies in this theory.