Liber Pontificalis, in vita Leonis III
| Name of text: | Liber Pontificalis, in vita Leonis III | 
| Author of text: | |
| Date of text: | |
| Date of person in text: | Pope Leo III (795-816) | 
| Name of structure in text: | Vatican, Oratory of the Holy Cross | 
| Type of structure in text: | chapel | 
| Date of structure in text | 795-816 | 
| Century of structure 1: | 4 AD | 
| Century of structure 2: | 12 AD | 
| Country in text: | Italy | 
| Region in text: | Lazio | 
| City in text: | Rome | 
| Specific place of mosaic in text: | |
| Description of mosaic in text: | He [Leo III] decorated this apse with mosaics, various pictures and marble, adorning it with wondrous brightness. | 
| Mosaic date in text: | 9 AD | 
| Tesserae silver mentioned in text? | No | 
| Tesserae gold mentioned in text? | No | 
| Colour descriptions in text: | |
| Bibliography: | Liber Pontificalis, in vita Leonis III, ed. Duchesne,trans. by Raymond Davis, The Lives of the Eighth-Century Popes (Liverpool: Liverpool University Press, 1992), p. 207 | 
| URLs: | |
| Comments: | 
