|
The central motif of the vaulting mosaic in the Scarcella (the chancel) in its wheel-like scheme is the Lamb of God, around which is a radial arrangement of patriarchs and prophets. The wheel is supported by four Atlantes kneeling on Corinthian capitals on the diagonal axes, between which an enthroned Madonna and Child and an enthroned John the Baptist fill the south and north vaulting panels.
A master named Fra Jacopo, who came from Venice, was responsible for the four Atlantes in the chancel vault.
| 
