A regent is a person appointed to administer a state because the monarch is absent, incapacitated, or too young to rule. Regents often have the authority to make decisions on behalf of the monarch and can govern until the rightful ruler is able to take over. This role is common in monarchies, where the line of succession may require a temporary leader. Regents can be appointed for various reasons, such as the death of a king or queen, or when a prince or princess is not yet of age. The position of regent can be filled by a family member, a trusted advisor, or a council, depending on the laws and customs of the specific kingdom.