Guifred I Born in 918 Died in 970 - Vcte de Briancon
1. Hugues de Briancon - Mestral de Savoie Marie DE BUGEY
1.1. Siboud - sn d"Aix and de Clermont, Vcte de Bugey
1.1.1. Siboud I - +n.1080sn de Clermont, Virieu et Saint-Geoire
1.1.1.1. Siboud II - +1182 Born about 1080. Died about 1160 Cte de Clermont et sn de Virieu
1.1.1.1.1. Siboud II de Clermont +n.1180
1.1.1.1.2. Guillaume I de Clermont 1130 +n.1203
1.1.1.1.2.1. Guillaume II - sn de Clermont Born about 1165. Died after 1234.
1.1.1.1.2.1.1. Siboud IV
- sn de Clermont et Saint-Geoire Born about 1195.
Died before 1249 Married to Beatrix de Virieu 1200
1.1.1.1.2.1.1.1. Aymar I (Aynard) - sn de Clermont, Virieu et Saint-Geoire, sn de La Chapelle Born about 1224. Died in 1303. m. - Alix de Villars 1235-1304
1.1.1.1.2.1.1.1.1. Geoffroi I - sn de Clermont, Vaulsene, Virieu, Paladru, Crepol et Saint-Geoire Born about 1265. Died in 1332.Allied in 1301 to Béatrix DE SAVOIE
1.1.1.1.2.1.1.1.1.1. Aymar I - Baron de Clermont-en-Viennois, Vcte de Clermont-en-Trieves, sn de Saint-Geoire, Vaulsene, Virieu, Paladru, Saint-Etienne et Saint-Germain de Hauterive Born after 1301. Died before 1349. Allied about 1325 to Agathe DE POITIERS-VALENTINOIS
1.1.1.1.2.1.1.1.1.1.1. Geoffroy II de Clermont Born in 1325 Died in 1371
1.1.1.1.2.1.1.1.1.1.2. Aymar II de Clermont - sn de Surgeres, de Hauterives et du Passage-en-Dauphine Born in 1330 Died in 1376