Complex sentence: Philip Henry Stanhope, 5th Earl Stanhope (January 30,1805-December 24,1875) English historian, better known as Lord Mahon, son of the 4th earl and his wife, the daughter of the 1st Baron Carrington.
Split into simpler sentences: Philip Henry Stanhope, 5th Earl Stanhope (January 30,1805-December 24,1875), was an English historian, better known as Lord Mahon. He was the son of the 4th earl and his wife, the daughter of the 1st Baron Carrington.