Which preposition to use with francia

at Occurrences 1%

The Child lying on part of his mother's blue mantle, so arranged that while she kneels and bends over him, she cannot change her attitude without disturbing him, is a concetto admired by critics in sentiment and Art; but it appears to me very inferior and commonplace in comparison to the Francia at Munich.

from Occurrences 1%

This again is true of Francesco Raibolini, surnamed Francia from his master in the goldsmith's craft.

in Occurrences 1%

But a more perfect example is the Madonna by Francia in the Munich Gallery, where the divine Infant lies on the flowery turf; and the mother, standing before him and looking down on him, seems on the point of sinking on her knees in a transport of tenderness and devotion.

Which preposition to use with  francia