Thomas Crecquillon (c.1505 to c. 1557), served as choirmaster to Emperor Charles V during the 1540's, and was also associated with churches in Antwerp, Namur, and Therouanne. The bulk of his over 200 chansons were issued by the Antwerp music printer Tielman Susato in Antwerp. Barton Hudson and Martin Ham, “Crecquillon, Thomas,” New Grove 2, VI, 653-57.