During the Age of Absolutism, several European powers centralized power around strong absolute monarchies. France was centralized under Louis XIV, known as the "Sun King", who ignored parliament and spent lavishly. Prussia became a powerful Protestant state under Frederick William and his son Frederick the Great. Austria remained strong under Catholic Hapsburg rule, led by Maria Theresa. Russia was westernized and its power centralized by Peter the Great and later Catherine the Great, though both increased serfdom. These powers vied for dominance in shifting alliances while seeking to maintain a balance of power in Europe through competition and war.