The de Barry family is a noble family of Cambro-Norman origins which held extensive land holdings in Wales and Ireland. The founder of the family was a Norman Knight, Odo, who assisted in the Norman Conquest of England during the 11th century. As a reward for his military services, Odo was granted estates in Pembrokeshire and around Barry, Wales, including Barry Island just off the coast. Odo’s grandson, Gerald of Wales, a 12th-century scholar, gives the origin of his family's name, de Barry, in his Itinerarium Cambriae (1191): "Not far from Caerdyf is a small island situated near the shore of the Severn, called Barri, from St. Baroc … . From hence a noble family, of the maritime parts of South Wales, who owned this island and the adjoining estates, received the name of de Barri." Many family members later assisted in the Norman invasion of Ireland. For the family's services, King John of England awarded Philip's son, William de Barry, extensive baronies in the Kingdom of South Munster, specifically the defunct Uí Liatháin kingdom (O'Lethan and Imokilly) with its late seat at Castlelyons. Ancestry Odo de Barry was the grantee of the immense manor of Manorbier in Pembrokeshire, which included the manors of Jameston and Manorbier Newton, as well as the manors of Begelly and Penally. He built the first motte-and-bailey at Manorbier. His son, William FitzOdo de Barry, is the common ancestor of the Barry family in Ireland. He rebuilt Manorbier Castle in stone and the family retained the lordship of Manorbier until the 15th century. Issue of William FitzOdo de Barry He had sons: Robert, Philip, Walter and Gerald (better known as Giraldus Cambrensis) by Angharad (also known as Hangharad) daughter of Gerald de Windsor (died 1135) and Nest ferch Rhys (died after 1136). After Gerald's death, Nest's sons married her to Stephen, her husband's constable of Cardigan Castle, by whom she had another two sons; the eldest was Robert Fitz-Stephen. Robert de Barry accompanied his half-uncle Robert Fitz-Stephen in the Norman invasion of Ireland. He took part in the Siege of Wexford and was killed at the battle of Lismore in 1185. Philip de Barry came to Ireland in 1185 to assist his half-uncle Robert Fitz-Stephen, and his first cousin Raymond FitzGerald (also known as Raymond Le Gros), in their efforts to recover lands in the modern county Cork - the cantreds of Killede, Olethan and