Trdat the Architect was the chief architect of the Bagratid kings of Armenia, and most notable for his design of the cathedral at Ani and his reconstruction of the dome of Hagia Sophia in Constantinople.

Bagratid Armenia was an independent Armenian state established by Ashot I Bagratuni of the Bagratuni dynasty in the early 880s following nearly two centuries of foreign domination of Greater Armenia under Arab Umayyad and Abbasid rule. With each of the two contemporary powers in the region—the Abbasids and Byzantines—too preoccupied to concentrate their forces on subjugating the region, and with the dissipation of several of the Armenian nakharar noble families, Ashot succeeded in asserting himself as the leading figure of a movement to dislodge the Arabs from Armenia.