Background
Waterpark was the son of Sir Henry Cavendish, 2nd Baronet and Sarah Cavendish, 1st Baroness Waterpark.
Waterpark was the son of Sir Henry Cavendish, 2nd Baronet and Sarah Cavendish, 1st Baroness Waterpark.
He was a fellow of the Society of Antiquaries of London. Waterpark succeeded to his father"s baronetcy in 1804 and his mother"s barony in 1807, at which point the two titles merged. Together they had nine children.
He sat in the Irish House of Commons as the Member of Parliament for Portarlington between 1790 and 1797.