Senchas síl ÍrOne of the major compilations of Irish genealogical material and king-lists, describing the Ulaid and (allegedly) related population groups whose descent is traced from Ír, one of the sons of Míl. The oldest seven manuscript versions of the collection represent at least three distinct recensions. In John V. Kelleher's view, their “chief theme is that the true Ulaid (fír-Ulaid) are the Dál nAraide and Uí Echach Coba, and this particularly set forth in the tracts that begin the section, which recount the senchus of Síl Ír, the Ulaid kings of Ireland, the kings of Emain Macha, etc. Also of Síl Ír are the Ciarraige, Corco mdruad, Conmaicne, and Ulaid. In the corpus the historical Ulaid are closely related to the Érainn and both are attached to the ancestral line of Dál Cuinn at Óengus Turbech Temrach, 19 generations before Conn Cétchathach. However, not much attention is paid to Dál Fiatach in Rawl. 502.”