[1] He was Lord of Narberth Castle from around 1140 to his death, although it was part of the wider estates of Gilbert de Clare, Earl of Pembroke.
Upon his death in battle against the Welsh Prince in 1158, his lands passed to his oldest son, Meilyr, later Lord Chief Justice of Ireland for his cousin, King Henry II.
Her husband Walter, along with Amabilis's uncles, her nephews and the Geralds were active in Irish affairs as well as holding large grants of land there.
[4] When FitzRoy's army landed at Ynys Môn, he torched the churches of Llanbedrgoch and Llanfair Mathafarn Eithaf.
During Owain's men gathered together and the next morning fought and defeated the Norman army and killed Henry FitzRoy by a "shower of lances".