Daniel Lleufer Thomas,
Dictionary of National Biography…
(1895)
“ The date of his birth is generally given as 1540, but since Gruflydd Hiraethog, who was his bardic teacher, died in 1550, the date of 1530 is more probable (Cambrian Biography, p. 342, sub William Lleyn and G. ap Rhys, Llenyddiaeth Gymreig, p. 308 n.) Owen is always described as M.A., but where he graduated appears unknown. He was appointed vicar of Oswestry in 1683, and died there in 1587 (Thomas, Diocese of St. Asaph, p. 655) . ”
