Artist: Pietro Cavallini

Date: 1316-1334

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• Before the fire, this arch mosaic was originally on the church's facade

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• The mosaic has Mary and the Child Jesus. To the right of Mary is an angel which is the symbol of the evangelist Matthew. The symbol of John is on the other side of this arch. The symbols of the other two evangelists, Luke and Mark, are on the back side of the triumphal arch