Owen, eldest son, Prince of Powys-Wenwynwyn, designated as Lord de la Bole of Welch-Pool, Montgomery County, seated at Powys Castle. It is stated that, summoned to Parliament held at Shrewsbury, Owen acknowledged his lands to be held under the Crown of England in capite, under the tenure of free baronage, and resigned to the English monarch and his heirs the sovereignty of Powys-Wenwynwyn. This Prince married Johanna, only surviving child (by Katherine, daughter of Lord Strange of Knockyn) of Sir Robert Corbet, Knight, of Moreton Corbet, County Salop, and sister of Sir Thomas Corbet who died sine prole in the lifetime of his father--the Corbet estates passing to the issue of Sir Robert Corbet by his 2nd marriage. The only son and heir of Owen and Johanna died under age and unmarried in 2nd of Edward II, 1309, and was succeeded by his sister and heir, Hawise.