Background
Trench was born in Dublin, Ireland, the son of William Trench, 3rd Earl of Clancarty and Lady Sarah Juliana Butler.
Trench was born in Dublin, Ireland, the son of William Trench, 3rd Earl of Clancarty and Lady Sarah Juliana Butler.
They had three children. William Frederick Le Poer Trench, 5th Earl of Clancarty (29 December 1868 – 16 February 1929). Lady Katherine Anne Le Poer Trench (12 August 1871 – 25 February 1953).
Honorary
Richard John Le Poer Trench (25 December 1877 – 10 August 1960).