Career
He sat in the House of Commons from 1715 to 1754, when he took his seat in the House of Lords. During the close of the War of the Spanish Succession, he served as an Aide-de-Camp to the Earl of Galway in Portugal, in 1710. Charles Powlett, 5th Duke of Bolton (d 1765)
Harry Powlett, 6th Duke of Bolton (1720–1794)
Lady Henrietta Powlett (d 22 December 1753), married on 12 July 1741 Robert Colebrooke of Chilham Castle (d 1784), no issue
Lady Catherine Powlett (d 1775), married first William Ashe, second in 1734 Adam Drummond of Megginch (d 1786), without issue by him
He held the seat until the 1722 general election, when he was returned as Member of Parliament for Hampshire.
He held that seat until he succeeded to the peerage in 1754, with one interruption.
At the 1734 general election he was returned both for Hampshire and for Yarmouth. A petition was lodged against the Hampshire result, and he sat for Yarmouth until 1737 when the petition against the Hampshire result was withdrawn, then chose to represent Hampshire rather than Yarmouth for the remainder of the Parliament.
From 1733 until 1742, he was a Lord of the Admiralty. He was sworn a Privy Counsellor in 1755.
