Richard Neville, Earl of Warwick, remains one of the most controversial personalities of fifteenth-century England. The archetypal over-mighty subject, he was the dominant figure in the dynastic revolutions at the heart of the fifteenth-century Wars of the Roses. Warwick played a pivotal role first in advancing the Yorkist cause, leading Edward IV to replace the Lancastrian Henry VI in 1461. Then, having lost influence at court, he changed sides and was reversed the process in 1470. Warwick "the Kingmaker" dominated national politics in his various roles as general, admiral, pirate, subaltern, administrator, politician, propagandist, statesman, and diplomat.