Frans Luycx, Flemish painter (b. 1604)
Frans Luycx or Frans Luyckx (before 17 April 1604 – 1 May 1668) was a Flemish painter who became the leading portrait painter at the imperial court of Emperor Ferdinand III in Vienna. He is best known for his portraits of the Emperor's family and various members of the Habsburgers, including its Austrian and Spanish branches.