Apse Mosaic

Left to right: Pope Paschal I, St. Agatha, St. Paul, Christ, St. Peter, Cecilia's husband Valerian, and St. Cecilia. 

Paschal I's halo is square to indicate that he was alive at the time the mosaic was created.  He holds a model of a church to indicate his sponsorship of the reconstruction of Santa Cecilia.

On her head St. Agatha wears the crown of martyrdom.  Valerian and St. Cecilia carry theirs on their left arms. 

In this 9th century image the keys have emerged as St. Peter's attribute, but St. Paul does not have the sword that we see in most of his later portraits.

See details of the figures on the left and the right.

More of Saint Cecilia
More of St. Peter
More of St. Paul