Anastasius I Dicorus (Greek: Anastsios; c.431 9 July 518) was Eastern Roman emperor from 491 to 518. A career civil servant, he came to the throne at the age of 61 after being chosen by the wife of his predecessor, Zeno. His reign was characterised by reforms and improvements in the government, finances, economy, and bureaucracy of the Empire. He is noted for leaving the empire with a stable government, reinvigorated monetary economy and a sizeable budget surplus, which allowed the Empire to pursue more ambitious policies under his successors, most notably Justinian I. Since many of Anastasius' reforms proved long-lasting, his influence over the Empire endured for many centuries.
Anastasius was a Miaphysite and his personal religious tendencies caused tensions throughout his reign in the Empire which was becoming increasingly divided along religious lines. He is venerated as a saint by the Syriac Orthodox Church on 29 July.
Aelia Ariadne (Greek: Ἀριάδνη) (c. 450 – 515) was Eastern Roman empress as the wife of Zeno and Anastasius I. She is venerated as a saint in the Eastern Orthodox Church, with her feast day falling on August 22.