Pietro Cavallini, Three Episodes in the Infancy of Jesus

Basilica of Santa Maria in Trastevere, Rome

Left to right in the band below the main mosaic of the apse:

This image in full resolution

More of the Nativity
More of the Adoration of the Magi
More of the Presentation in the Temple

Photographed at the basilica by Richard Stracke, shared under Attribution-NonCommercial-ShareAlike license.