Upon Hywel"s death in 948, his sons Owain, Rhodri, and Edwin divided his lands among themselves according to Welsh law. The sons were not able to retain Hywel"s hegemony over Gwynedd, which was reclaimed for its earlier dynasty by the sons of Idwal Foel.
948In 950, two of Idwal Foel’s sons, Iago and Ieuaf, invaded the south, penetrating as far as Dyfed. Hywel’s sons retaliated by invading the north in 954, reaching as far as the Conwy Valley, before being defeated at Llanrwst and retreating to Ceredigion.
950954Rhodri died in 953 and Edwin in 954, leaving Owain in sole possession of Deheubarth.
953954In 958 Owain attacked Gorwennydd. From there he went to Euas and Ergin, and seized them from Morgan the Great, King of Morgannwg.
958In 959 Owain broke into the monastery, Llan Illdud in G
