Theodosius I

from The American Heritage® Dictionary of the English Language, 5th Edition.

• Emperor of Rome who ruled jointly (379–392) with Gratian and Valentinian II and independently (392–395). He repressed paganism and Arianism and in his will divided the eastern and western portions of the empire between his two sons.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun the last emperor of a united Roman Empire, he took control of the eastern empire and ended the war with the Visigoths; he became a Christian and in 391 banned all forms of pagan worship (346-395)