Theganus Trevirensisc. 800 - c. 850 | 
| Synoptical Presentation of Digitized Manuscripts: | |
| Bibliothèque nationale de France Codices | |
| Astronomus LIIII. - LV. - LVI. - LVII. - LVIII. - LVIIII. - LX. - LXI. - LXII. - LXIII. - LXIIII. | |
| Schaffhausen, Stadtbibliothek Codices | |
| Vita Ludovici 1. - 2. - 6. - 8. - 13. - 17. - 19. - 20. - 22. - 25. - 30. - 41. | |
| Edition Used | |||
| Astronomus | J.-P. Migne, Paris, 1850(PL 712, 280 - 554) | ||
| Vita Ludovici | J.-P. Migne, Paris, 1851(PL 106, 405 - 430) |