John Williams (Ab Ithel)  John Williams (bardic name: Ab Ithel) (7 April 1811–27 August 1862), was an antiquary and Anglican priest. Born in Llangynhafal, Denbighshire Wales in 1811, he graduated from Jesus College, Oxford in 1835 to become the Anglican curate of Llanfor, Merionethshire, where he married Elizabeth Lloyd Williams. In 1843 he became perpetual curate of Nercwys, Flintshire, and rector of Llanymawddwy, Merionethshire, in 1849. For much of his early life he adopted the pseudonym Cynhaval, after his birthplace in Llangynhafal, Denbighshire, however took the pseudonym Ab Ithel from the surname of his grandfather, William Bethell. His first book entitled "The Church of England independent of the Church of Rome in all ages", concerned the relationship between the Church of England and Rome. This book was published in 1836. It was followed by another in 1844 on the ecclesiastical antiquities of Wales entitled "Ecclesiastical Antiquities of the Cymry" or "The Ancient British Church". In 1856 Archdeacon Williams produced "Rules of Welsh Poetry" and "Medical Practice of Rhinwallon and his Sons" with the Welsh MSS. Society. By 1860 he had two more pieces of work ready for publication; "Chronicle of the Princes", and "Annales Cambriae" were both published in Rolls series. Williams was industrious both as a parish priest and as an antiquary. He was regarded by many of his contemporaries as one of the leading Welsh scholars of his day, and was able to exert a considerable and decidedly mixed influence on the course of Welsh scholarship. Nonetheless his enthusiasm and Welsh nationalist fervour, cause some to criticize him of being uncritical in his approach to the historical record and strongly influenced by Edward Williams (Iolo Morganwg, 1747–1826). In 1846, together with Harry Longueville Jones (1806–1870), another cleric and antiquary, Williams founded the Cambrian Archaeological Association, whose journal, "Archaeologia Cambrensis", he edited until 1853, when he and Jones quarrelled over editorial policy. He also published an edition and translation of the "Gododdin" in 1852, established the "Cambrian Journal", which he edited from 1854 until his death, and was prominent in the Welsh Manuscripts Society, editing four of its publications.