How did the Crusades affect kings?

The Crusades significantly increased the power and authority of kings by allowing them to rally support from nobles and common people around a common cause. Many monarchs gained prestige and wealth through the acquisition of new territories and resources. However, the Crusades also strained royal finances and led to increased taxation, which sometimes provoked dissent. Additionally, the involvement in the Crusades shifted the focus of power dynamics, as successful crusaders often returned with enhanced status, challenging traditional feudal hierarchies.