A Kingmaker Scenario occurs when two sides in a conflict are evenly matched and the third one is unable to overpower the other two. The third power then becomes the "King Maker": while it cannot win itself, it can ally itself with one of the other two, breaking the stalemate and bringing victory to its chosen side ("crowning them king"). The term "kingmaker scenario" comes from the game theory and was most likely inspired by Richard Neville a.k.a. Warwick the Kingmaker, who, while not suitable for the British throne himself (owing to a lack of Royal Blood), installed and deposed two sovereigns in short succession during the Wars of the Roses.