Constantine is said to have converted to Christianity shortly before his death, having instigated the celebration of Christ's birth - Christmas. The head of Constantine was found at Stonegate in York.

That is a truly remarkable development, and a monumental ... is Constantine. He is, first of all, a successful general. He is also the son of a successful general and at the head of the army ...

which was resolved with the arbitration of Constantine XI. The imperial portrait is considered the last chronologically preserved portrait of an emperor in Byzantine monumental painting.