Proper noun
Vitry
The first element in the name of a number of places in France.
Louis, however, still burned with guilt over the massacre at Vitry and wished to make a pilgrimage to the Holy Land to atone for his sins. Source: Internet
The term "Ars nova" (new art, or new technique) was coined by Philippe de Vitry in his treatise of that name (probably written in 1322), in order to distinguish the practice from the music of the immediately preceding age. Source: Internet
For Vitry the breve could be divided, for an entire composition, or section of one, into groups of two or three smaller semibreves. Source: Internet