| 21. | It has a single fornix, framed by fluted lesenes and decorated with an archivolt of vine tendrils.
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| 22. | The chapel is bordered by two corner pilasters, which pass to a profiled archivolt through an entanblature.
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| 23. | Two great marble lions support the archivolt columns, and were carved in the 1281 by Giambono da Bissone.
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| 24. | The first archivolt has a rosetta and rings, the second monkeys, the third monoliths and human figures.
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| 25. | The internal archivolt, is carved with flourishes of vegetal elements that extend to the base of the inner archivolt.
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| 26. | The internal archivolt, is carved with flourishes of vegetal elements that extend to the base of the inner archivolt.
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| 27. | These support a plain frieze and denticulated cornice, above which is the same archivolt found on the flanking windows.
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| 28. | The exterior archivolt is flanked by sculpted pilasters, which extend above each respective capital and end in a floral.
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| 29. | The door has an arc with archivolt, St . Louis'image and a large rosette appear over the door.
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| 30. | It is presented in the first tier of the north and south facades which are profiled with archivolt semi-columns.
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