Complex sentence: The younger son of Thomas Fane, 8th Earl of Westmorland, he was a Clerk to HM Treasury from 7 December 1757 until 29 August 1763, but was described as "very idle and careless and spending much time in the country".
Split into simpler sentences: The younger son of Thomas Fane, 8th Earl of Westmorland. He was a Clerk to HM Treasury from 7 December 1757 until 29 August 1763, but was described as "very idle and careless and spending much time in the country".