Henry is one of the “Surety Barons” named for the enforcement of the Magna Carta signed by King John of England in 1215.

Henry de Bohun, 1st Earl of Hereford (1176 - 1220) was an English nobleman. He was Earl of Hereford and Hereditary Constable of England from 1199 to 1220.

He was the son of Humphrey de Bohun and Princess Margaret, daughter of Henry of Scotland, 3rd Earl of Huntingdon, a son of David I of Scotland. His paternal grandmother was Margaret, daughter of Miles de Gloucester, 1st Earl of Hereford and Constable of England. Bohun's half-sister was Constance, Duchess of Brittany.

The male line of Miles of Gloucester having failed, on the accession of King John of England, Bohun was created Earl of Hereford and Constable of England (1199). He married Maud of Essex, daughter of Geoffrey Fitzpeter, 1st Earl of Essex. Their children were:
1. Humphrey de Bohun, 2nd Earl of Hereford
2. Margery de Bohun, married Waleran de Beaumont, 4th Earl of Warwick.

Bohun was one of the 25 executors of the Magna Carta, and was subsequently excommunicated by the Pope. He was also a supporter of King Louis VIII of France and was captured at the Battle of Lincoln in 1217. He died whilst on pilgrimage to the Holy Land.