| Aachen: Domarchiv (D-AAm) |
Many manuscripts of the Marienstift in Aachen are kept here; they are fully described by Gatzweiler.
See also Handschriftencensus Rheinland.
 | D-AAm G13, Graduale, ca 1200 (?) |
| | D-AAm G20, Antiphonarium, 13th century |
| | D-AAm G33, Office manuscript for the cantor, 2nd half 15th century |
| | D-AAm G35, D-AAm G36, D-AAm G37, D-AAm G38, D-AAm G39: five books containing a week psalter, hymns, etc. (Microfilm of these manuscripts in Utrecht, Letterenbibliotheek) |
| | D-AAm G43, Dekanale, 16th century |
And many more.
 | Federstrich (Katalog, Aachen 2000-2001) |
| | Gatzweiler: Die liturgischen Handschriften des Aachener Münsterstifts |
| | Handschriftencensus Rheinland (the manuscripts of the Domarchiv Aachen are listed as nrs 20-65; those of the Domschatzkammer as nrs 66-67) |