of the Earl of Clare. Hywel ap Rhys (died 1231) Maredudd ap Rhys (died 1239) Another Maredudd (died 1227) became Archdeacon of Cardigan. Rhys's daughter Nest or Annest ferch Rhys married Rhodri ab Owain, prince of the western part of Gwynedd. Gwenllian (circa 1178 – 1236) who married Ednyfed Fychan, seneschal of Gwynedd under Llywelyn the Great, and through her, Rhys became an ancestor of the Tudor dynasty. Through the Tudors inter-marrying with the House of Stuart Rhys is an ancestor to the current ruling house of the United Kingdom and also an ancestor of several ruling houses in Europe. When Henry Tudor landed in Pembrokeshire, Wales in 1485 to make a bid for the throne, his descent from Rhys was one of the factors which enabled him to attract Welsh support (Henry flew a (Welsh) dragon banner at the battle of Bosworth Field). Angharad ferch Rhys married William FitzMartin, lord of Cemais. Other daughters married the Welsh rulers of Gwrtheyrnion and Elfael. Notes References Primary sources Giraldus Cambrensis. 1908. The Itinerary through Wales; Description of Wales. Edited and translated by R. C. Hoare. Everyman's Library. . Giraldus Cambrensis. 1861–91. Giraldi Cambrensis: opera ed. J. S. Brewer. (Rolls Series). 8 vols. Longman, Green, Longman & Roberts. Jones, T., ed. 1941. Brut y Tywysogion: Peniarth MS. 20. University of Wales Press. Pryce, H., ed. 2005. The Acts of Welsh rulers 1120–1283. University of Wales Press. . Secondary sources Carr, A. D. 1995. Medieval Wales. Macmillan. . Cowley, F. G. 1977. The monastic order in South Wales 1066–1349 University of Wales Press. . Davies, R. R. 1987. Conquest, coexistence and change: Wales 1063–1415 Clarendon Press, University of Wales Press. . Jones, F. 1969. God bless the Prince of Wales: four essays for investiture year Carmarthenshire Community Council (Local History Committee). . Lloyd, J. E. 1911. A history of Wales from the earliest times to the Edwardian conquest. Longmans, Green & Co. Maund, K. 2006. The Welsh kings: warriors, warlords and princes. Tempus. . Moore, D. 2005. The Welsh wars of independence: c. 410-c.1415. Tempus. . Pryce, H. 2004. "Rhys ap Gruffudd (1131/2–1197)", Oxford Dictionary of National Biography. Accessed 22 January 2013. Rees, D. 1985. The son of prophecy: Henry Tudor's road to Bosworth. Black Raven Press. . Rees, S. 1992. Dyfed (A guide to ancient and historic Wales series). HMSO. . Siddons, M. P. 1993. The Development of Welsh Heraldry, vol. 2.