Johannes de Quadris

Johannes de Quadris (Quatris) (before 1410 – 1457?) was an Italian composer of the early Renaissance. He was one of the first composers of polyphony associated with the basilica of St. Mark’s in Venice, and the earliest known composer to write a polyphonic setting of the Magnificat for four voices. Life He was a priest, and originally from the diocese of Valva-Sulmona, in the vicinity of L’Aquila, in the Abruzzo region of central Italy. Sometime before 1436 he began to work as a singer at San Marco in Venice, which was then at the very beginning of its rise to fame; the first mention of a choir there is found in a document of 1403 (by the end of the 16th century, it was one of the most renowned musical institutions in Europe). Quadris worked at San Marco from at least 1436, the date given on his Magnificat, to the time that a Vatican document listed him as “deceased”, in 1457. He made repeated requests (1450, 1452, 1454) to Pope Nicholas V to obtain a prebend in Aquileia. Quadris’s music remained popular for more than half a century, as shown by the many copies made of his hymn Iste confessor, as well as the printing of his music for the Passion by Ottaviano Petrucci in 1506 (the o