Quentin Matsys (1466 – 1529) was a painter in the Flemish tradition and a founder of the Antwerp school. He was born at Leuven, where legend states he was trained as an ironsmith before becoming a painter. Matsys was active in Antwerp for over 20 years, creating numerous works with religious roots and satirical tendencies.
Source: Wikipedia, "Quentin Matsys", available under the CC-BY-SA License.
Note: This is a different person than Quentin Metsys the Younger (c.1543–1589), a Flemish Renaissance painter who was an artist of the Tudor court during the reign of Elizabeth I of England.