Other names: Magister Guilielmus de Francia (Pirrotta), Frate Guiglielmo di Santo Spirito, Guglielmo di Francia (Gallo)
According to the Lo ms, Guilielmus was an Augustinian friar in S Spirito in Florence. Sacchetti described him as `Pariginus frater romitanus'. He is depicted in Sq with Frater Egidius.