Cathalán mac Indrechtaig
Cathalán mac Indrechtaig was a Dál Fiatach king of Ulaid, which is now Ulster, Ireland. He belonged to a branch of the Dal Fiatach called the Leth Cathail centered in the Lecale barony of modern County Down. He ruled from 857-871 as leth-rí of Ulaid.
His grandfather Tommaltach mac Cathail had made a bid for the crown but was defeated and slain in battle by Eochaid mac Fiachnai of the main Dal Fiatach branch. His father, Indrechtach mac Tommaltaig, is only mentioned in the Annals of Innisfallen which state that he was a co-ruler of Ulaid. This is not confirmed by other annals or king lists however.
Cathalán succeeded to the throne of Ulaid in 857 as co-ruler with Lethlobar mac Loingsig of the Dál nAraidi sept of modern County Antrim. Though not listed in the king lists, the annals award him the title of co-ruler at his death notice. He was killed treacherously at the instigation of the high king Áed Findliath of the northern Uí Néill.
He had a son named Cummascach. His brother Máel Mocheirge mac Indrechtaig was also a leth-rí of Ulaid.
