Roque de Balduque, The Caceres Altarpiece: Detail, the Coronation of the Virgin Mary
Cáceres Cathedral, Cáceres, Spain
The crown itself has been removed from the altarpiece. In Coronation images it is usually the Son alone who crowns his mother, but a few are like this one in having the Father and Son together place the crown on her head while the Holy Spirit hovers overhead in the pediment:
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More of The Coronation of the Virgin Mary
Photographed at the site by Richard Stracke, shared under Attribution-NonCommercial-ShareAlike license.