Missae Feriae III majoris hebdomadae [microform] : ad stylum ejusdem Cappellae : partim cantu plano, partim musica polyphona ... / Joseph Baini cappellanus ... 
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The Scrinium of the Roman Church existed from the 4th century, functioning as both library and archives. In the 6th century it was under the Primicerius Notariorum (see ID VATV032-A). By the end of the 8th century it was headed by the Bibliothecarius, who also served as the chancellor. This library was lost in the 13th century. New collections were transferred to Avignon with the papal court, and were left there when the popes returned to Rome. The present library was founded by Nic...