Digby was the son of Admiral Sir Henry Digby, who fought at the Battle of Trafalgar, and Lady Jane Elizabeth Coke, daughter of Thomas Coke, 1st Earl of Leicester.
[4] Lord Digby died suddenly on 16 October 1889 at his home, Minterne House in Dorset of a stroke, he was later buried in St. Andrew's Church, Minterne.
Lord Digby married his third cousin Lady Theresa Anna Maria Fox-Strangways, daughter of Henry Fox-Strangways, 3rd Earl of Ilchester, in 1837.
He died in October 1889, aged 80, and was succeeded in his titles by his eldest son, Edward Henry Trafalgar Digby.
Lord and Lady Digby had three daughters and four sons:[5]