Brooke bought his way into the Irish parliament in 1776, coming in for Lord Arran’s borough of Donegal. Described in 1782 as ‘a moderate and well inclined man’,
Brooke was out of Parliament from 1802 until 1806; despite his friendship with Lord Conyngham, he was ousted by the superior interest of Lord Abercorn. By 1806 the situation had changed and, though evidently not popular,
