| Amsterdam: Vrije Universiteit (NL-Avu) |
The library has an unpublished undated anonymous typoscript catalogue, simply called Handschriften. Section 3.2 is called 'Liturgie', its first part (catalogue numbers 28-46) concerns 'Rooms-katholieke liturgie', including books of hours, prayer books in Dutch, etcetera.
In the Bibliotheek der Vrije Universiteit Amsterdam some manuscripts of the Wilhelmietenklooster Baseldonck in 's Hertogenbosch are kept.
 | NL-Avu xv 00004 (cat.nr. 32), Collectarius, 2nd half 14th century, Wilhelmietenklooster Baseldonck in 's Hertogenbosch; see In Buscoducis nr 62, incl facs. |
| | NL-Avu xv 00005 (cat.nr. 42), Ordinarius, 1596, Wilhelmietenklooster Baseldonck in 's Hertogenbosch |
| | NL-Avu xv 05004 (cat.nr. 44), Psalterium, ca 1400-1475, Wilhelmietenklooster Baseldonck in 's Hertogenbosch |
| | NL-Avu xv 05006 (cat.nr. 30), Antiphonarium aestivale, 1516, Wilhelmietenklooster Baseldonck in 's Hertogenbosch |
| | NL-Avu xv 05007 (cat.nr. 29), Antiphonarium hiemale (in two volumes), 1531, Wilhelmietenklooster Baseldonck in 's Hertogenbosch |
Furthermore:
 | NL-Avu xv 05005 (cat.nr. 40), Missale, diocese Luik, until 1654 property of Baseldonck in 's Hertogenbosch |
| | NL-Avu xv 05506 (cat.nr. 31), Breviary, canonesses regular of Maria-Wijngaard in Weert, ca 1475-1500 |
| | NL-Avu xv 00003 (cat.nr. 43), Ordinarius for the Augustinians of the Kapittel van Sion, ca 1469-1500 |
| | NL-Avu xv 00101 (cat.nr. 28), Antiphoner, ca 1590-1600 |
| | NL-Avu xv 00102 (cat.nr. 46), Venite Exultemus, for each day of the week; Latin and Dutch, ca 1450-1500 |
And there is a fragment.