The song Rosina was not necessarily German: it appears as Rozijne hoe is dijn ghestelt with three stanzas of middle-Dutch poetry in the Antwerp Liedboek of 1544. The rhymed psalm Die boose sprack in zijn ghedacht (Ps. 35) in the Dutch Souter Liedekens (Antwerp: Symon Cock, 1540) appears with the designation “after the tune of Rosina waer was v ghestalt,” suggesting that the song was a popular favorite in the Low Countries. Clemens non Papa published a setting of the tune in his Souter Liedekens of 1556. A contrafact of the song also appears under the title O Christe hwor wor thÿn kundskab in Een Ny handbog med Psalmer oc aandelige lofsange (Rostock: Ludowich Dietz, 1529). Basis for Josquin's Missa "Rosina" (http://elvis.music.mcgill.ca/node/1287)