The FMG URL is invalid at is. Here's a link to Guillaue [IV]: [http://fmg.ac/Projects/MedLands/AUVERGNE.htm#GuillaumeIVAuvergnedie... Auvergne]
http://fmg.ac/Projects/MedLands/AUVERGNE.htm#GuillaumeIVAuvergnedie...