On January 7,1744, he married Maria Theresa's only sister, Archduchess Maria Anna of Austria, thus making him doubly Maria Theresa's brother-in-law, and the pair were jointly made Governors of the Austrian Netherlands.
He married Maria Theresa's only sister, thus making him doubly Maria Theresa's brother-in-law. This was on January 7,1744. Maria Theresa's only sister was Archduchess Maria Anna of Austria. The pair were jointly made Governors of the Austrian Netherlands. This was on January 7,1744.