Gaelic nobility refers to the aristocratic class in Ireland and Scotland that emerged during the early medieval period. This class was characterized by powerful clans and families, often led by chieftains or lords who held land and authority over their territories. The Gaelic nobility played a significant role in the social, political, and military life of their regions. The Gaelic nobility was known for its distinct culture, including the use of the Irish and Scottish Gaelic languages, as well as unique customs and traditions. Clans such as the O'Neills in Ireland and the MacKenzies in Scotland exemplified this noble class, which often engaged in alliances and conflicts with each other and with external powers.