 Lafracoth O' Brien, daughter of Muirchertach O' Brien and Dubhchobhleigh Of Ossory.Born 1076 at ,, Pembrokeshire, Wales, died 1135 at ,, Pembrokeshire, Wales, 58 or 59 years Married 1100 at ,, , Ireland (25 or 26 years married) to:  Arnulph De Montgomery, son of Roger De Montgomery and Mabel De Alencon.Born 1048 at Pembroke, Dyfed, Wales, died 1126 at ,, , France, 77 or 78 years Child: 1. Philip De MontgomeryBorn 1102 at ,, Pembrokeshire, Wales, died 1177 at Thornton, Fifeshire, Scotland, 74 or 75 years | |||