Heilen ap Tudor ¹

   Other names for Heilen were Heilyn ap Sir Tudor and Heilyn ap Tudur ap Ednyfed Fychan.

  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:
"HEILIN AP SIR TUDOR, Knt.,...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: "Heilyn ap Sir Tudor, grantee in a charter of Prince Llewelyn ap Gruffydd, dated Dolwyddelen, 1281; m. Agnes, dau. of Bleddyn, Lord of Dinmael, Denb., 3rd son of Owain Brogyntyn, Lord of Edeirnion, 10th in descent from Rhodri Mawr, King of Wales 843-877, by whom he had with other issue,--Gruffydd ap Heilyn..."
²

Heilen married Agnes verch Bleddyn ap Owain Brogyntyn, daughter of Bleddyn ap Owain Brogyntyn Lord of Dinmael, Denbigh and Unknown.