Birck, Urban

External identifiers	RISM Online (people/30072810)
Sources copied	Source Copyist Type D-Dl MS Grimma 49 [Discantus I] Music D-Dl MS Grimma 49 [Discantus II] Music D-Dl MS Grimma 49 [Altus I] Music D-Dl MS Grimma 49 [Altus II] Music D-Dl MS Grimma 49 [Tenor I] Music D-Dl MS Grimma 49 [Bassus I] Music D-Dl MS Grimma 49 [Bassus II] Music