The "Virgin of the Chair" by Raphael
The use of the painters of circular screens for their compositions dates back to the
Roman and Byzantine period. In Renaissance the use of this form is greatly glossed
over by painters. One of the works celebrated with this format is the Virgin of the
Chair.
Using the analysis proposed by Charles Bouleau in his work "The Secret Geometry
of Painters", in the image below. Some of the numerical and geometrical relations
that underlie the structure of this celebrated Renaissance work following the clue
left by the above-mentioned author will be presented below.