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 the Long, Margrave of the Nordmark Henry I the Long, Margrave of the Nordmark Henry I the Long (c.1065 - died 27 June 1087), Margrave of the Nordmark, also Count of Stade (as Henry III), son of Lothair Udo II, Margrave of the Nordmark, and Oda of Werl, daughter of Herman III, Count of Werl, and Richenza of Swabia. Henry married Eupraxia of Kiev, daughter of Vsevolod I, Grand Prince of Kiev, and his second wife Anna. There were no children as a result of this marriage, and Eupraxia, widowed, married next Henry IV, then King of Saxony, who became Holy Roman Emperor. Raffensperger suggests that