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 Archduchess Maria Johanna Gabriela of Austria:

"

Maria Johanna strictly studied Latin, French, Italian, Greek, Spanish, German, English, history, geography, land surveying, mathematics, and theology—from the age of three.[3] She was also taught how to dance and sing, and was known to have excelled at these subjects.[citation needed] She often gave musical performances, as she loved to sing.[citation needed] She also loved to act.