Who was Theodora? What role did she play in the Nika revolution?

Theodora was the most powerful woman in Byzantine history.

Was empress of the Byzantine Empire and the wife of Emperor Justinian I. She was one of the most influential and powerful of the Byzantine empresses. Theodora proved herself a worthy and able leader during the Nika riots. There were two rival political factions in the Empire, the Blues and the Greens, who started a riot in January 532 during a chariot race in the hippodrome. The riots stemmed from many grievances, some of which had resulted from Justinian's and Theodora's own actions.