Dona Nobis Pacem

"Dona Nobis Pacem" (Ecclesiastical Latin: [ˈdona ˈnɔbis ˈpatʃɛm) is a song with Latin text, often sung as a canon. The words, which mean "Grant us peace", come from the Latin Mass. The origin of the melody is unknown (most hymnals list it as "traditional"). It is sometimes attributed to Giovanni Pierluigi da Palestrina, though numerous sources attribute it to Mozart.