Fulk FitzWarin at the time of his death in 1197. Whittington Castle lies on the English side of Offa's Dyke, which during the Norman era and before was the border between England and Wales. The site was fortified as a castle by William Peverel in 1138, in support of Empress Matilda, the daughter of King Henry I (1100–1135), in her struggle (known as The Anarchy) for the throne against King Stephen (1135–1154), grandson of William the Conqueror. In the late 1140s the lordship of Whittington, like Oswestry and Overton ceased to be part of England and became part of the Kingdom of
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