1. Boston Public Library, MS f Med.18 Title: Martyrologium]. Author: Usuard Place: Flanders Date: 1425.
2. Boston Public Library, MS pb Med.235 Title: Single leaf from a book of hours : in Flemish]. Author: Catholic Church Place: Flanders Date: between 1450 and 1475
3. Boston Public Library, MS q Med.159 Title: Book of hours : undetermined use : in Flemish]. Author: Catholic Church Place: Flanders Date: between 1433 and 1466
4. Boston Public Library, MS q Med.33 Title: Book of hours : use of Utrecht : in Flemish]. Author: Catholic Church Place: Flanders Date: ca. 1490