| Leiden: Klooster Lopsen |
Augustinians (Kap. of Windesheim) in Leiden, named Klooster Lopsen or Hieronymusdal.
 | NL-L 65052/7, Vigilienboek, ca 1480, incl. two Middle Dutch songs (Stooker & Verbeij nr 740) |
| | NL-L 65052/8, Vigilienboek, 15th century |
| | NL-L Kloosterarchieven 112 |
 | Mon. Windeshemense 3, pp. 265-278 |
| | Obbema: A Dutch monastery library ..., in: Quaerendo 1974, pp. 214-236 |