Geoffrey de Mandeville, 1st Earl of Essex to the crown, perhaps in part due to a large fine levied by Henry I due to his displeasure at the escape of an important political prisoner when William was in charge of the Tower of London. The King also held the substantial estate of Geoffrey's maternal grandfather Eudo "le Dapifer" to which Geoffrey laid claim. Geoffrey gained Eudo's lands and his father's offices during the shifting tides of fortunes of the two competitors for the English throne after King Henry I's death in 1135. He initially supported Stephen, who sometime in 1140 (most likely May of that year) made
Henry I, Count of Eu Henry I, Count of Eu Henry I, Count of Eu and Lord of Hastings (ca. 1075-12 July 1140) was the son of William II, Count of Eu, and his wife Helisende d'Avranches was the sister of Hugh d'Avranches, Earl of Chester. Henry descended from Richard I, Duke of Normandy. His father died in 1096, having revolted against King William II of England. As the eldest son, Henry succeeded William as Count of Eu and Lord of Hastings. In 1101, he supported Duke Robert Curthose against his brother Henry Beauclerc who has just seized the English throne. Robert left Tréport, the