"PEN DEULWYN, in the Cwmwd of Pen y Bont, Cantref of Cron Nedd (now called the Hundred of Cowbridge), County of GLAMORGAN, South Wales: a discharged Vicarage valued in the King's Books at £8..13..4: Patrons, The Chapter of Llandaff: Church dedicated to St. Cadog. The Resident Population of this Parish, in 1801, was 283. The Money raised by the Parish Rates, in 1803, was £221..5..5, at 5s. in the pound. It is 4 m. E. N. E. from Cowbridge. This Parish contains about 2500 acres of Land, all inclosed and cultivated. It is situate upon the river Elay. According to the Diocesan Report, in 1809, the yearly value of this Benefice, arising from Tythes, and Rent of Glebe, was £143..13..11."
From: A Topographical Dictionary of The Dominion of Wales by Nicholas Carlisle, London, 1811