Background
He was the younger son of Thomas Pitt, 1st Earl of Londonderry.
He was the younger son of Thomas Pitt, 1st Earl of Londonderry.
In 1740 he was admitted to Street John"s College, Cambridge. He took his seat in the Irish House of Lords on 29 October 1743. As his title was in the Peerage of Ireland, he was not barred from election to the House of Commons of Great Britain.
Londonderry never married and upon his death his titles became extinct.
10th Parliament of Great Britain]
As such, he sat as the Member of Parliament for the rotten borough of Camelford in Cornwall between 1747 and 1754.