These two fragments of the Archdiocesan Theological Seminary (Nadbiskupsko bogoslovno sjemenište), Zagreb, under the shelfmark 506 belong to the second volume of Breviarium notatum Strigoniense (abbr. BNS II), a musically notated breviary of Esztergom from the second half of the 13th century. The fragments reveal some parts of the Matins and the Lauds of Candlemas (Purificatio BMV), celebrated on the 2nd of February.
The codex itself survived in an entirely fragmented state: most of the corpus (258 fragments) is on the covers of 15th—17th century printed books of the Metropolitanska knjižnica Zagrebačke nadbiskupije (Metropolitan Library, Zagreb); further four fragments are among the detached fragments of the ELTE University Library and Archive, Budapest, and two fragments are in the possession of the Franciscans at Zagreb. (For the latter group’s detailed description see fragments F328a, F328b, F 1104.) At the end of the 17th century – among other manuscripts – the codex was used as raw material by the bookbinder of the Zagreb Chapter after bishop Aleksandar Mikulić (1688—1694) ordered the printed books of the Chapter to be bound uniformly. See the details here: https://hrcak.srce.hr/en/clanak/392864.
For further fragments of BNS II kept in the Archdiocesan Theological Seminary, Zagreb, see: F1115, F1116, F1117
Gábriel Szoliva OFM