From The Stargate Omnipedia

A minor Celtic god, Grannus was a Goa'uld lieutenant of Camulus. Presumably after Camulus's defeat, Grannus managed to get himself killed by his own Jaffa. A monastery is still maintained in his name, where the monks who remain are extremists now more than ever, since the god they worship is dead.


The Ties That Bind - When SG-1 visits a monastery of Grannus, Vala and her associate, Caius, praise the Goa'uld's name while conducting business undercover.