Under Louis XIII, the energetic Cardinal Richelieu promoted the centralisation of the state and reinforced the royal power by disarming domestic power holders in the 1620s. He systematically destroyed castles of defiant lords and denounced the use of private violence (duelling, carrying weapons and maintaining private armies). By the end of the 1620s, Richelieu established "the royal monopoly of force" as the doctrine. During Louis XIV's minority and the regency of Queen Anne and Cardinal Mazarin, a period of trouble known as the Fronde occurred in France. This rebellion was driven by the great feudal lords and sovereign courts as a reaction to the rise of royal absolute power in France.