Jacques Arcadelt (also Jacob Arcadelt; c. – 14 October 1568) was a Franco-Flemish composer of the Renaissance, active in both Italy and France, and principally known as a composer of secular vocal music. Although he also wrote sacred vocal music, he was one of the most famous of the early composers of madrigals; his first book of madrigals, published within a decade of the appearance of the earliest examples of the form, was the most widely printed collection of madrigals of the entire era. In addition to his work as a madrigalist, and distinguishing him from the other prominent early composers of madrigals – Philippe Verdelot and Costanzo Festa – he was equally prolific and adept at composing chansons, particularly late in his career when he lived in Paris.