Born at St Anne's, Clontarf, near Dublin, he was the eldest son of Sir Benjamin Guinness, 1st Baronet, and elder brother of Edward Cecil Guinness, 1st Earl of Iveagh.
He was born at St Anne's near Dublin. He was the eldest son of Sir Benjamin Guinness. He was the eldest son of 1st Baronet. He was the eldest son of elder brother of Edward Cecil Guinness. Edward Cecil Guinness was 1st Earl of Iveagh. St Anne's was Clontarf.