This brief biography is taken from ‘A Catalogue of Notable Middle Templars: With Brief Biographical Notices’ by John Hutchinson and Published by Printed by Butterworth and Co. for the Honourable society of the Middle Temple in 1902
Admitted 20 May, 1667.
Son and heir of Edward Gwyn of Llausannor, Glamorganshire. Born in Somersetshire 1648. Preferring politics to law, he was returned to Parliament, in which he represented various constituencies between 1673 and 1727. In 1679 he became Clerk of the Council, and he was twice Under Secretary of State. In 1701 he was made a Privy Councillor, and in 1713— 14 was Secretary at War. His only legal appointments were the Recordership of Totnes and the Stewardship of Brecknock. He died 2 June, 1734, at Ford Abbey, his splendid seat in Dorset. He was known as “Rochester’s Gwyn” from his close friendship with that nobleman.