Anastasius I Dicorus

Anastasius I (c. 430–518), nicknamed Dicorus for his mismatched eyes, was Eastern Roman emperor from 491 to 518. A former silentiary from Dyrrachium, he was chosen at sixty by Zeno's widow Ariadne, who married him.

In the Isaurian War of 492–497 he faced supporters of Zeno's brother Longinus, who held out in the mountains for years. He fought Persia in 502–505 and built the fortress of Daras.

Against Bulgar raids he raised the Long Wall west of Constantinople. His reforms left a vast treasury surplus, though his Monophysite sympathies embittered religious politics. He died in July 518; Justin I succeeded him.