him the Lordships of Castlelyons and Buttevant in north Cork and Barry's Court in the civil parish of Carrigtwohill in southeast Cork. The family would eventually acquire the honours of Viscount Buttevant and Earl of Barrymore. William founded the priory of St. Thomas à Becket at Ballybeg for the Canons Regular of St. Augustine in 1229. His son, David Óg de Barry, enlarged the revenues of the priory in 1251. His heir was David "Mór" de Barry (born circa 1195), slain at the Battle of Callan in 1261. whose heir was David "Óg" de Barry, Justiciar of Ireland in 1267, and died in 1278. Gerald (born circa 1175), who succeeded his uncle Geraldus Cambrensis as Archdeacon of Brecon in 1203; and a daughter, who married Walter Mancenell. Note According to the "Archdall's Lodge" (1789) source, Robert de Barry, "after his services in Ireland is said to seat himself at Sevington, in Kent," and "about the year 1185 being killed at Lismore,". But as he was elder than his brother Gerald, who was born in 1146 or 1147, this Robert was about forty years old in 1185. The same source reports that the Robert who was slain near Lismore in that year was only an adolescens, that is between fifteen and twenty eight years of age. It is improbable therefore that Robert (aged over 40) was slain at Lismore. That person is more likely to be Philip's son, also called Robert. References Year of birth missing Year of death missing 12th-century births 12th-century Irish people Philip