images of Emperor Maurice and his family are unlikely to have survived their overthrow and murder by Phocas in 602. Icon of Christ Chalkites Above the main entrance of the Chalke, there stood an icon of Christ, the so-called Christ Chalkites ("Christ of the Chalke"). The origins of the icon are obscure: based on its mention in the Parastaseis, it may have existed by ca. 600, but it cannot be stated with any certainty. Its prominent display on the very entrance to the imperial palace made it one of the city's major religious symbols. Consequently, its removal, in 726 or 730, by Emperor Leo III the Isaurian (r. 717–741), was both a major political statement and a spark for violent rioting in the city, and marked the beginning of the official prohibition of icons in the Empire. The icon was restored a first time by Empress Eirene in ca. 787, until it was again removed by Leo V the Armenian (r. 813–820) and replaced by a simple cross. After the definitive restoration of the veneration of icons in 843, a mosaic icon by the famed iconodule monk and artist Lazaros replaced it. The exact appearance of the icon is unclear: although the early image has been interpreted as a bust of the Christ Pantocrator type, late Byzantine references, such as coins by John III Vatatzes (r. 1221–1254) and the Deesis mosaic in the Chora Church, use the term for depictions of a standing Christ on a pedestal. References Sources External links 3D reconstruction of the building at the Byzantium 1200 project Gates Great Palace of Constantinople