Dál nAraidi (; "Araide's part") or Dál Araide, sometimes Latinised as Dalaradia or Anglicised as Dalaray, was a Cruthin kingdom, or possibly a confederation of Cruthin tribes, in north-eastern Ireland during the Middle Ages. It was part of the over-kingdom of Ulaid, and its kings often contended with the Dál Fiatach for the over-kingship of the province. At its greatest extent, the borders of Dál nAraidi roughly matched those of County Antrim, and they seemed to occupy the same area as the earlier Robogdii of Ptolemy's Geography, a region shared with Dál Riata. Their capital was Ráth Mór outside Antrim, and their eponymous ancestor is claimed as being Fiachu Araide. Territory The Mythological Dál nAraidi was centered on the northern shores of Lough Neagh in southern County Antrim. Dál nAraidi was one of the more prominent sub-kingdoms of Ulaid, with its kings contending with the Dál Fiatach for the over-kingship of the province for some centuries. To the north of Dál nAraidi in County Antrim lay the Dál Riata, the boundary between which was marked out by the River Bush to Dál Riata's west, and the southern boundary running from Ravel Water to just north of Glynn on the east Antrim coast. Branches In Tuaiscirt In the mid-7th century the Dál nAraidi of Magh Line, ruled by the Uí Chóelbad dynasty, conquered Eilne (alias Mag Eilne) to their north-west and a branch of their dynasty seems to have settled there. This branch of the Uí Chóelbad descended from Fiachra Cáech (d. 608), brother of Fiachnae Lurgan, king of Dál nAraidi and over-king of Ulaid. Dungal Eilni, great-grandson of Fiachra Cáech and king of Dál nAraidi, was possibly the first of this branch to be based in Eilne, however in 681 was killed at Dún Ceithern (modern-day Giant's Sconce in parish of Dunboe, west of River Bann). This branch of the Magh Line Dál nAraidi eventually became known as the Dál nAraidi in Tuaiscirt (Dál nAraidi of the North) and . The first reference to Dál nAraidi in Tuaiscirt can be found in the Annals of Ulster under the year 824. Between 646 and 792, the Dál nAraidi in Tuaiscirt held the overkingship of Dál nAraidi seven times, with two of that number becoming overkings of Ulaid. Cathussach mac Ailello, king of Eilne and Dál nAraidi, and claimed as having ruled the over-kingdom of Ulaid for sixteen years, was killed at