As an author of eulogies, epigrams and epic poetry, Cyrus enjoyed the patronage of Empress Aelia Eudocia.
[1] After serving through a series of bureaucratic positions in the palace, in circa 426, Cyrus assumed the post of urban prefect of Constantinople for the first time.
[2] His activities for the improvement and embellishment of Constantinople were considerable: he introduced street lighting, restored several buildings, including the city walls, and erected a church to the Theotokos in a district that later bore his name.
He was apparently pardoned and his fortune returned to him, allowing him to give much of it to charities until his death in the reign of Emperor Leo.
460) Cyrus became a friend of Daniel the Stylite, after he freed his younger daughter Alexandria of an evil spirit.