Vassy, Calvados

[hrolf]

Hi all,

Can anyone point me to primary sources for the history of the commune of Vassy?

It was the site of a massacre of Hugenots in the late 16th c., but i'm more interested in much earlier history - preferably back to the normans - and definitely in primary sources: chronicles, histories, census, rolls, etc.

Google pulls up modern backreferences, but not much else.