أسوار القسطنطينية
A native of Laodicea of Phrygia, Constantinus was named praetorian prefect of the East for the first time around 447, when he restored the Walls of Constantinople, which had been damaged by an earthquake that January. As the Huns of Attila were moving towards Constantinople, Constantinus mobilised the factions of the Hippodrome of Constantinople to gather 16,000 workers: the Blues worked the stretch of walls from the Gate of Blachernae to the Gate of Myriandrion, the Greens from there to the Sea of Marmara; in sixty days, by the end of March, the walls were restored and the moat cleaned. A bilingual inscription was erected to celebrate the works. While in office, he received a letter from Theodoret of Cyrrhus, asking for a reduction of the taxation on his city, while another was received after he left office.