[1] He was the son of John Leveson-Gower, 1st Baron Gower (1675–1709) and Lady Catherine Manners (1675–1722), daughter of John Manners, 1st Duke of Rutland and his third wife, Catherine Noel.
[2] Leveson-Gower was educated at Christ Church, Oxford.
In the 1722 general election, he was returned unopposed, on his family's interest.
In May 1725, he was chosen a member of the committee "to manage the evidence" against former Lord Chancellor Thomas Parker, 1st Earl of Macclesfield, during his impeachment trial for corruption.
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