Our research team arrived at the Cathedral Library of Kalocsa on 18 January 2022 with a dual purpose. On the one hand, Gábriel Szoliva was looking for new examples of 17th-century “Zagreb bindings”, which he had found during his previous research in the old book collection of the Metropolitanska Knjižnica in Zagreb. So he would have liked to enrich the source material for the forthcoming edition of the Sanctorale volume of the dismembered 13th-century Breviarium Notatum Strigoniense, which is kept in the Croatian library. Fragments of this extremely valuable codex of medieval Hungarian music history have survived as part of these typical Zagreb bindings (metropolitanski uvez), and their discovery in Kalocsa may serve as a witness to the migration of books in the modern period. Another aim of the trip was to explore and digitize the medieval music manuscript fragments preserved in the Kalocsa library. Although no new Zagreb bindings were identified, 14 new 14th–15th century notated fragments still serving as covers, were found in addition to the previously known, detached and restored fragments. Their analytical descriptions and digital images will soon be available at http://fragmenta.zti.hu/ with the kind permission of the library.

Our research team is grateful to the director of the library, Zita Fischer Grócz and her colleagues, who provided excellent conditions for our work, and to Balázs Bábel, Metropolitan Archbishop of Kalocsa–Kecskemét, who honored us with his personal presence.