The issue of Charles' elder daughter's marriage was raised early in her childhood. She was first betrothed to Léopold Clément of Lorraine, who was supposed to come to Vienna and meet Maria Theresa. Instead, he died of smallpox in 1723, which upset Maria Theresa. Léopold Clément's younger brother, Francis Stephen, then came to Vienna to replace him. Charles considered other possibilities (such as Don Carlos) before announcing the engagement to Francis. At the end of the War of the Polish Succession, France demanded that Francis surrender the Duchy of Lorraine (his hereditary domain), to Stanisław Leszczyński, the deposed King of Poland, who would bequeath it to France at his death. Charles compelled Francis to renounce his rights to Lorraine and told him: "No renunciation, no archduchess." Francis complied; he was married to Maria Theresa in February 1736, and Lorraine devolved to Stanisław in July 1737.