Atse Iyasu
Iyasu or Joshua was proclaimed nəgusä nägäst of Ethiopia in Tigray and Gojjam by enemies of Ras Ali I of Yejju. He was defeated in battle against Ras Ali.Reign
He is sometimes given the title Atse, a less familiar Amharic word for "Emperor", to distinguish him from the other Emperors of Ethiopia with the same name; because he was not recognized as a legitimate ruler, he is not assigned a number.
He may be identical with the Emperor "Yoas" mentioned by Nathaniel Pearce. Pearce reports that "Yoas" was living in Gondar at the time of his death, and died penniless "without leaving sufficient even to purchase a coffin to receive... remains, or money enough for fettart or toscar."