Catherine of Austria

This article is about the Polish queen consort, from the Habsburg dynasty. For the Spanish princess in the same dynasty, see Catarina of Spain.

Catherine of Austria (September 15, 1533 - February 28, 1572) was one of the 15 children of Ferdinand I, Holy Roman Emperor and Anna of Bohemia and Hungary. On October 22, she married Francesco III Gonzaga, prince of Mantua. He died 4 months after marriage. On June 23, 1553 she became the third wife of King Sigismund II Augustus of Poland and Lithuania, who was her paternal first cousin. She had no children.