Maybe: N#70299
Yours has a slightly different decoration of the vestments worn by the emperor, but there are many variants of this type. The lettering to the right of Mary appears to match.
Added: This example has a similar reverse ( the side with 2 figures). The emperor's vestments have three jewels (dots) on the collar, one on the chest, and 5 at the waist, with the central one circled. https://www.acsearch.info/search.html?id=10496954