I want to know the answer to the following question:
When was the mosaic at the church of Santo Stefano del Cacco destroyed?
All the background I'm provided with is that "In the 7th–9th centuries Rome fell under the influence of Byzantine art, noticeable on the mosaics of Santa Prassede, Santa Maria in Domnica, Sant'Agnese fuori le Mura, Santa Cecilia in Trastevere, Santi Nereo e Achilleo and the San Venanzio chapel of San Giovanni in Laterano.". Is that enough to answer the question?