Sir Tudor ap Ednyfed Vychan of Nant and Llangynhafal

  Research Notes:

Source: A Genealogical and Heraldic Dictionary of the Landed Gentry of Great Britain & Ireland" by John Burke & John Bernard Burke, vol. I, London, 1847, p. 736 has:
"EDNYFED VYCHAN AP KENDRIG, Lord of Brynffenigl, in Denbighland, and Krigeth in Eflnoydd, Chief Counsellor, Chief Justice, and General of Llewelyn ap Iorwerth, King of North Wales, was one of the most prominent historical characters of the period... He m. twice, 1st, Tangwystyl, dau. of Llowarch ap Bran, Lord of Menon, in Anglesey, Founder of the II. Noble Tribe of North Wales and Powys, contemporary with Owen Gwynedd, Prince of North Wales, and by her had issue, 1. Tudor, (Sir,) ap Ednyfed Vychan, of Nant and Llangynhafal, one of the commissioners for the conclusion of peace between EDWARD I., King of England, and LLEWELYN AP IORWERTH, King of North Wales. He m. Adlais, dau. of Richard, son of Cadwallader, second son of GRIFFITH ap Cynan, King of North Wales, and was father of HEILIN AP SIR TUDOR, Knt.,.who m. Agnes, dau of Bloddyn, Lord of Dinmael, in Denbighland, living 25 May, 2 HENRY III., 1218, third son of Owain Brogyntyn, Lord of Edeirnion... By this lady Heilin had issue, 1. GRIFFITH AP HEAILIN; 2. Grono ap Heilin... 3.Angharad..."

From Annals and Antiquities of the Counties and County Families of Wales by Thomas Nicholas, Vol. I, London, 1872, p. 362:
"Sir Tudor ap Ednyved Vychan, who was one of the commissioners for the conclusion of peace between Edward the First and Llewelyn ap Iorwerth, Prince of North Wales. By Adlais, or Alice, dau. of Richard ap Cadwaladr, second son of Gruffydd ap Cynan, King of North Wales, he had a son--Heilyn ap Sir Tudor..."

From The History of the Princes, the Lords Marcher, and the Ancient Nobility of Powys Fadog, and the Ancient Lords of Arwystli, Cedewen, and Meirionydd by J. Y. W. Lloyd, Vol. IV (London, 1884), p. 341 "Sir Tudor ab Ednyfed [Fychan], had Nant and Llanganafal in Môn. He was one of the Commissioners for the conclusion of peace between Edward I, King of England, and Llywelyn ab Iorwerth, Prince of Wales."

Tudor married Adlais verch Richard ap Cadwaladr, daughter of Richard ap Cadwaladr and Unknown.