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. This book illuminates Warwick’s character and motivation, showing that he was an emotional, charming, and popular man with a strong sense of family loyalty. It is the first full study of this compelling figure within the context of political life in late medieval England.