Ulaid also refers to a people of early Ireland, and it is from them that the province of Ulster derives its name. Some of the dynasties in the over-kingdom claimed descent from the Ulaid, but others are cited as being of Cruithin descent. In historical documents, the term Ulaid was used to refer to the population group of which the Dál Fiatach was the ruling dynasty. As such, the title "Rí Ulad" held two meanings: over-king of Ulaid and king of the Ulaid, as in the Dál Fiatach.