I want to know the answer to the following question:
After what time did the Abbot of Monte Cassino send for Byzantine mosaicists?
All the background I'm provided with is that "The Abbot of Monte Cassino, Desiderius sent envoys to Constantinople some time after 1066 to hire expert Byzantine mosaicists for the decoration of the rebuilt abbey church.". Is that enough to answer the question?
Answer: yes