an Entity references as follows:
Archduchess Maria Johanna of Austria (German: Maria Johanna Gabriele Josefa Antonia; 4 February 1750 – 23 December 1762) was an Archduchess of Austria as the eleventh child of Empress Maria Theresa and Emperor Francis I. She was originally meant to marry Ferdinand I of the Two Sicilies, however, the marriage plans were never finalised due to Maria Johanna’s death due to smallpox.