Missa sine nomine

A Missa sine nomine, literally a "Mass without a name", is a musical setting of the Ordinary of the Mass, usually from the Renaissance, which uses no pre-existing musical source material, as was normally the case for Mass compositions. Not all Masses based on freely composed material were so named, but many were, particularly from the late 15th century through the 16th century.

One of the earliest examples of a Missa sine nomine is by Guillaume Dufay, (Bologna, International museum and library of music, Ms Q15) whose Missa Resvelliés vous (formerly known as a Missa sine nomine) dates from before 1430, and possibly as early as 1420. It may have been written for the wedding of Carlo Malatesta and Vittoria di Lorenzo in Rimini.