Byzantine Emperor. He was born in 813 AD and was crowned co-emperor by his father, the Emperor Michael II in 822 AD. He succeeded him as sole Emperor in 829 AD at age sixteen. He continued the religious policies started by his father and in 832 AD issued an edict forbidding the veneration of icons. He soon gained a reputation as a champion of justice and executed his father's co conspirators against Leo V immediately after coming to power. At the beginning of his reign Sicily was once again invaded by the Arabs, and Anatolia was taken by the Abbasid Caliph Al Ma'mun. Theophilos retaliated in 831 AD by leading an army into Cilicia and capturing Tarsus, but he was defeated at Cappadocia and forced to sue for peace at the price of one hundred thousand gold dinars and the surrender of seven thousand prisoners. In 386 AD he ordered an expedition to rescue some Byzantine captives who had been forced to settle north of the Danube by Krum of Bulgaria. He led an army against the Abbasids in Mesopotamia in 837 AD and captured several cities. The following year, however, he was heavily defeated in the Battle of Anzen and lost much Byzantine territory. He never recovered from this defeat and his health began to fail. He died in 842 AD.
Bio by: js