| Source name | Date | Type | Surface | |
|---|---|---|---|---|
| I-VId MS U.VIII.3 | 13th-14th century? | fragment | Parchment | |
| I-VId MS U.VIII.4 | n.d. | page of a bible | Parchment | |
| I-VId MS U.VIII.11 | 1st half of 15th century (with a few later additions) | liturgical MS with interpolated music | Parchment | |
| I-VId MS Z.VI.6 | 14th century | choirbook (not polyphony) | Parchment |