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 Piazza San Marco:

"

Buildings on either side to support the tower were added by 1506 and in 1512, when there was a fire in the old Procuratie, it became obvious that the whole range would have to be rebuilt.[citation needed]