Claim: Hereford Castle is a manor rebuilt by William FitzOsbern, Earl of Hereford and father of Roger FitzOsbern who was involved in an unsuccessful attempt to depose King William .
Evidence: Shortly after the Norman Conquest in 1066, William FitzOsbern was made Earl of Hereford. He may have rebuilt the castle as it was in use in 1067 when the Anglo-Saxon Chronicle noted that Eadric the Wild harassed its garrison. In 1071 William FitzOsbern died and his son Roger took over possession of the castle.