Late Roman frescos plastered directly onto Egyptian reliefs in Karnak.In 323 AD,...

Late Roman frescos plastered directly onto Egyptian reliefs in Karnak.

In 323 AD, Roman emperor Constantine the Great recognised the Christian religion, and in 356 Constantius II ordered the closing of pagan temples throughout the Roman empire, into which Egypt had been annexed in 30 BC. Karnak was by this time mostly abandoned, and Christian churches were founded among the ruins, the most famous example of this is the reuse of the Festival Hall of Thutmose III’s central hall.

Source