

Introduction
Sir Edward Trevor (c. 1580–1642) was the founder of the fortunes of the Trevor dynasty, a major family of Denbighshire. He was the son of Robert Trevor andKatherine ap Llewellyn. His first wife was Anne Balle, daughter of Nicholas Balle.
While on military service in Ireland, in 1612 Edward Trevor marriedas his second wife Rose, a daughter of Henry Ussher, Archbishop of Armagh and his second wife Mary Smith,and acquired an estate in County Down which was renamed Rostrevor, incorporating his own name.He was knighted in 1617 and built the mansion of Brynkynallt on his estates at Chirk in 1619.
In 1622 he was appointed High Sheriff of Denbighshire and in 1634 was elected Member of Parliament for Newtown, Montgomeryshire.
In 1641 Trevor was captured and imprisoned by Irish rebels, and he died in captivity.
Children
His son Marcus Trevor was a soldier of the English Civil War and following the English Restoration of 1660 was created Viscount Dungannon.
He hadthree other sons:
- John, who wasthe father of Sir John Trevor,Speaker of the House of Commons
- Arthur
- Edward,
and at leastone daughter Eva, whomarried William Fitton of Awrice, County Limerick and was the mother of Sir Alexander Fitton, Lord Chancellor of Ireland.