Emperors in Europe

King of León (1065 to 1109), of Castile (1072 to 1109), and of Galicia (1071 to 1109)

Marcus Aurelius Mausaeus Carausius (died 293) was a military commander of the Roman Empire in the 3rd century. He was a Menapian from Belgic Gaul, who usurped power in 286, during the Carausian Revolt, declaring himself emperor in Britain and northern Gaul (Imperium Britanniarum). He did this only 13 years after the Gallic Empire was ended in 273. He held power for seven years, fashioning the name "Emperor of the North" for himself, before being assassinated by his finance minister Allectus.

Allectus (died 296) was a Roman-Britannic usurper in Britain and northern Gaul from 293 to 296.

medieval Latin title for the emperor of Spain