Some authorities derive Sir Rhys ap Thomas [great-grandson of Nicholas ap Philip] from Owain through S. Kentigern, but the family history and the Welsh annalists usually make Pasgen the eldest son of Urien, his ancestor. He succeeded his father in the principality of Rheged, but was deposed for his cru elty, his sister's husband, Morgan Morganwdd, being put in his place. The Triads called Pasgen one of the " three haughty chiefs of Britain." He had issue : Mor,1 who became a saint, i.e., a Celtic monk, and is bit. at Enlli or Bardsey Island ; Nidiaw,1 also an anchorite ; and Gwrvyn,1 who founded a church in Anglesey and had a son, Nidan,2 Confessor to the monastic community of Pennion, in Anglesey. Mor was the lineal ancestor of Rhys ap Goronwy, ap Einion, ap Lloarch, ap Kymbathwye, ap Gurwared, ap Syssylt, ap Rhyne, ap Llarch, ap Mor, ap Pasgen, of whom nothing more than their names 1 has descended to posterity. Rhys ap Goronwy m. Margaret, dau. and heir, of Griffin ap Kiddy, Lord of Gwynvey, and had a son, Elider ap Rhys, m. Gladwys, dau. of Philip ap Bah ap Gwathvoed. Gwathvoed was possibly the Gwath- voed Vawr who m. Morfyd, dau. and heir, of Ynys Ddu, King of Gwent, and refused to be one of the subject princes who rowed King Edgar, the Saxon, in his boat upon the River Dee, in 973, bidding the King in reply to his threats, rather "ofncr na ofni angau " — "fear him who fears not death." Another Gwathvoed lived a century later and was Prince of Ceredigion and Lord of Cilwyr. Some say Gladwys who in. Elider ap Rhys was his descendant ; Philip ap Bah, Lord of Esginbrath, being his grandson. Elider and Gladwys had a son, Sir Elidur Ddu, Knight of the Holy Sepulchre, who m. Cecily, dau. of Syssilt ap Llewelyn, Lord of Cantrescliffe, and had issue : Katherine, m. David Morthye, Lord of Odyn Castle and Fountain Gate ; and Philip, m. Gladys, dau. of David Vras, and was the father of Philip, who had issue : Crisley, m. Richard Aubrey ; Gwylliam (ancestor of Captain John Vonderhorst Rees, of Killymaenllwyd, J. P., in 1872) ; and Nicholas his eldest son, who m. Janet, dau. and heir, of Gruffyd ap Llewelyn Voethes, descended from Elystan Gloddryd, Prince of Ferlys, sometimes called Ethelystan. He was a godson of King Athelstane, of England, and son of Cuhelyn ap Ivor, Lord of Builth, descended in the seventh generation from Teon, Bishop of Glouces ter, who had Cassibelaunus as his ancestor. Elystan was Lord of Caermarthen and Prince of Ferlys between the Wye and Severn rivers, m. Gladys, dau. of Rhun ap Ednowen, or Gwenllian, dau. of Einion ap Howel Dda, and