Ieuan ap Trahaearn - Pedigree | FamilyCentral
 Abt 1076 -
 1030 - 1081
 Abt 1011 - 5 Aug 1063
 Abt 1025 - Aft 1086
Family Group
 14 May 978 - 31 Aug 1057
 Abt 980 - 10 Sep 1067
 Abt 968 - 23 Apr 1016