On Colebrooke's death the title passed to his second but eldest surviving son, the third Baronet. He died childless and was succeeded by his nephew, the fourth Baronet. He was the son of Henry Colebrooke, an administrator in India and Sanskrit scholar, third son of the second Baronet. Colebrooke represented Taunton, Lanarkshire and North Lanarkshire in Parliament. He was succeeded by his eldest son, the fifth Baronet, who was elevated to the peerage in 1906. Lord Colebrooke had no surviving male issue and on his death in 1939 both the baronetcy and barony became extinct.
Robert Colebrooke, elder brother of the first and second Baronets, sat as Member of Parliament for Maldon.