MacCarthy-Mor is a title used in medieval Ireland, specifically referring to the rulers of the Kingdom of Desmond. This kingdom was located in the southern part of Ireland and was known for its rich culture and history. The title signifies a high-ranking leader, often associated with the MacCarthy family, who played a significant role in Irish nobility. The MacCarthy-Mor was responsible for governing their lands and maintaining order among their subjects. They were also involved in various alliances and conflicts with other Irish clans and the English crown. The legacy of the MacCarthy-Mor continues to be an important part of Irish heritage.