 Their daughter , Agnes , moved to Constantinople in early 1170 to marry Kaisar Alexios @-@ Béla , the younger brother of Stephen III of Hungary , who lived in the Byzantine Empire . Agnes was renamed Anna in Constantinople . Her husband succeeded his brother as Béla III of Hungary in 1172 . She followed her husband to Hungary , where she gave birth to seven children before she died around 1184 . Raynald and Constance 's second daughter , Alice , became the third wife of <unk> VI of Este in 1204 . Raynald also had a son , Baldwin , from Constance , according to historian Bernard Hamilton , but Runciman says that Baldwin was Constance 's son from her first husband . Baldwin moved to Constantinople in the early 1160s . He died fighting at the head of a Byzantine cavalry regiment in the Battle of Myriokephalon on 17 September 1176 . 
