Synonyms for Richard Neville (same or very similar meaning)
WordNet sense 1 (English statesman; during the War of the Roses he fought first for the house of York and secured the throne for Edward IV and then changed sides to fight for the house of Lancaster and secured the throne for Henry VI (1428-1471)):
kingmaker, Warwick, Earl of WarwickFrom the ODE community, based on WordNetadd/edit