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 Margaret of Provence:

"

Margaret herself died in Paris, at the Poor Clares monastery she had founded,[2] on 20 December 1295, at the age of seventy-four. She was buried near (but not beside) her husband in the Basilica of St-Denis outside Paris. Her grave, beneath the altar steps, was never marked by a monument, so its location is unknown; probably for this reason, it was the only royal grave in the basilica that was not ransacked during the French Revolution, and it probably remains intact today.[citation needed]