Source: SK-BRl (Bratislava) Rkp. 387 Missale NotatumFolio: 158vSequence: 1Full text: Constitues eos principes*Feast: Vincula PetriOffice: MASSGenre: OfCantus ID: g00261Image link: http://147.213.131.4:85/digi/Rkp_zv_387/LKB___RKP_ZV_387_____24TL/SK/1_1_0158V.h…