Edward Vaughan (died 1683) was a Welsh lawyer and politician who sat in the House of Commons from 1679 to 1681.
Their son John (1670–1721), was created by William III in 1695, baron of Fethard County Tipperary, and viscount Lisburne, in the peerage of Ireland.
The Vaughan family, of Trawsgoed (Crosswood ), Cardiganshire in the ecclesiastical parish of Llanafan, can claim continuous residence on the same site for six centuries.
Although it is a South Wales family, the pedigree is traced to Collwyn ap Tangno, founder of the fifth noble tribe of North Wales, Lord of Eifionydd, Ardudwy, and part of Lleyn, who had his residence on the site of Harlech Castle.
It is claimed that the first member of the family to settle at Trawsgoed was Adda ap Llewelyn Fychan (c. 1200); the older pedigrees agree in stating that he married Tudo (or Dudo), daughter and heiress of Ieuan Goch of Trawsgoed.