Complex sentence: William Bruce, 8th Earl of Kincardine (died 8 September 1740), the son of Thomas Bruce, 7th Earl of Kincardine and Rachel Paunceforth, became the 8th Lord of Torry and the 8th Earl of Kincardine in 1740.
Split into simpler sentences: William Bruce, 8th Earl of Kincardine (died 8 September 1740). The son of Thomas Bruce, 7th Earl of Kincardine and Rachel Paunceforth, Bruce became the 8th Lord of Torry and the 8th Earl of Kincardine in 1740.