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 Sancha of Castile, Queen of Aragon:

"

A patroness of troubadours such as Giraud de Calanson and Peire Raymond, the queen became involved in a legal dispute with her husband concerning properties which formed part of her dower estates. In 1177, she entered the County of Ribagorza and took forcible possession of various castles and fortresses that belonged to the crown there.[citation needed]