Henry II of England was driven to restore multiple castles.
 This policy proved unsuccessful, as Ua Conchobair was unable to exert sufficient influence and force in areas such as Munster: Henry instead intervened more directly, establishing a system of local fiefs of his own through a conference held in Oxford in 1177
 This trend had already caused tensions in England, for example when King Stephen forced Theobald of Bec, the Archbishop of Canterbury, into exile in 1152

