User talk:Carloman II

I seem to be about three years behind on this posting, but I'm curious about a statement made in the article. It is:

Louis even subscribed a charter of William's as Lodoici filii Karoli regis.

What is the source for this comment? What is the charter about, and very important, what is the date on it?

Any help on this will be greatly appreciated.

Carloman II (talk) 17:18, 27 August 2009 (UTC)