The term "High King" refers to a monarch who holds the highest authority over a kingdom or a group of kingdoms. In historical contexts, particularly in Ireland, the High King was seen as the supreme ruler, often presiding over various lesser kings. This title was not always hereditary, as it could be contested through warfare or alliances. In mythology, the concept of a High King often appears in tales of legendary figures who unite different tribes or clans. These stories emphasize the importance of leadership, justice, and the ability to maintain peace among diverse groups, reflecting the values of the society that created them.