Cornelis Anthonisz. (c. 1505–1553) was a Dutch painter, engraver, and mapmaker from Amsterdam. He was the grandson of the painter Jacob Cornelisz van Oostsanen, who likely taught him to paint. Anthonisz is best known for his 1544 woodcut, a bird’s-eye view map of Amsterdam, commissioned by the city as a gift for Charles V. This map was printed in 12 blocks and remained a key representation of the city well into the 17th century. He also created portraits, allegorical prints, and is credited with producing one of the earliest militia group portraits, the 1533 “Banquet of Members of Amsterdam’s Crossbow Civic Guard.” His work is valued for its historical and artistic importance, capturing early 16th-century Amsterdam and advancing Dutch Renaissance art.