Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Maria Theresa of Austria-Este, Queen of Sardinia:

"

Maria Theresa was born on 1 November 1773 at the Royal Palace of Milan in Milan. She was the second child and first daughter of Archduke Ferdinand Karl of Austria, governor of Milan, and Maria Beatrice d'Este, heir to the Duchy of Modena. She was named after her paternal grandmother, Empress Maria Theresa, as all eldest granddaughters of the empress were.[citation needed] Maria Theresa had one older brother, Josef Franz, but he died in infancy in 1772 before she was born.