The sixth creation (1447): de la Pole William de la Pole, 1st Duke of Suffolk (1396–1450) (extinct) On the death of Humphrey without legitimate issue in 1447, William de la Pole became Earl of Pembroke. He was beheaded in 1450 and his titles were forfeited.
The sixth creation (1447): de la Pole William de la Pole 1st Duke of Suffolk (1396–1450) (extinct) On the death of Humphrey without legitimate issue in 1447, William de la Pole became Earl of Pembroke. He was beheaded in 1450 and his titles were forfeited.