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 Antipope Boniface VII:

"

Boniface VII was the son of Ferrucius[1] and was originally named Franco. He was born in Italy in the late 920s or early 930s AD, although the exact date is not known. Since his surname was Franco, it has been supposed that he belonged to a family of the name which is frequently mentioned in the documents of the tenth century, and which may have been of French origin. In 972 he became a Cardinal Deacon, a position which he held until he began his papacy in 974. However, little else is known about his early life simply due to the lack of documents available from this period of Rome as a whole.