Medieval kings were rulers in Europe during the Middle Ages, roughly from the 5th to the late 15th century. They held significant power over their kingdoms, often governing with the help of nobles and knights. Kings were responsible for maintaining order, collecting taxes, and defending their lands from invaders. Their authority was often believed to be divinely ordained, meaning they ruled with the support of the Church. Many medieval kings lived in grand castles, which served as both homes and fortresses. They participated in battles and tournaments to demonstrate their strength and leadership. The role of a king was often hereditary, passed down through royal families, such as the Plantagenets or the Tudors.