Background
He was a younger son of Sir John Warrender, 2nd Baronet and his wife Henrietta Johnston, daughter of Sir Patrick Johnston.
He was a younger son of Sir John Warrender, 2nd Baronet and his wife Henrietta Johnston, daughter of Sir Patrick Johnston.
In 1772, he succeeded his father as baronet. Warrender served with the Royal Horse Guards and fought in the Battle of Minden in 1759. Eventually he became a Lieutenant-Colonel of the 11th Regiment of Dragoons.
Between 1771 and 1791, he was King"s Remembrancer of the Court of Exchequer.
In 1780, Warrender married Helen Blair.
13th Parliament of Great Britain]
Warrender was Member of Parliament (Member of Parliament) for Haddington Burghs from 1768 until 1774.