Comte de Montfort

Montfort-l'Amaury is a commune in the Yvelines department in the southwestern suburbs of Paris, France. It was the stronghold of the Montfort family from the start of the 9th century. Amaury de Montfort built a castle here for King Robert II in 996. The castle was destroyed by the English during the Hundred Years' War.

Simon de Montfort "the Crusader" descended from the lords of Montfort l'Amaury. He succeeded his father as Baron de Montfort in 1181; in 1190 he married Alix de Montmorency, the daughter of Bouchard III de Montmorency. In 1199 while taking part in a tournament at Ecry-sur-Aisne in the province of Champagne he heard Fulk de Neuilly preaching the crusade, and in company with Count Thibaud de Champagne and many other nobles and knights he took the cross. ..... more

The cathars and the Albigensian Crusade


Carcassonne came under Simon de Montfort's control during the Albigensian Crusade in 1209
  • A1 ~ Amaury I, Signore de Montfort, lvd:952/997, m. N. de Cambrai;
    • B1 ~ Guillaume, Comte de Montfort, d:1018, m. N. de Nogent;
      • C1 ~ Amaury II de Montfort. d:1000/1031, m. Bertrada de Gometz;
        • D1 ~ Simon I de Montfort. d:1087, m1. Isabel de Broies, m2. Agnes d'Evreux;
          • E1 ~ [m1]: Isabel de Montfort, m. Ralph II de Toeny;  <==  Stafford family
          • E2 ~ [m2]: Bertrade de Montfort, d:1117, m. Count Fulk IV of Anjou;  <==  Anjou dynasty
          • E3 ~ [m2]: Amaury III de Montfort, Count of Evreux, d:1137, m. Agnes de Garlende;
            • F1 ~ Agnes de Montfort, d:1181, m. Waleran IV de Beaumont;  <==  Beaumont family
            • F2 ~ Simon I 'le chauve' de Montfort, Conte of Evreux, d:1181;
              • G1 ~ Simon II de Montfort, Count of Rochefort, m. Amicie de Beaumont;  ==>  Beaumont family
                • H1 ~ Simon III 'the Crusader', 4th Earl of Leicester, d:1218, m. Alice de Montmorency;
                  • I1 ~ Simon IV, 6th Earl of Leicester, lvd:1208/1265, m. Eleanor Plantagenet;  ==>  Plantagenet Dynasty
                    • J1 .. Eleanor de Montfort, d:1282, m. Llywelyn, Prince of Wales;
                    • J2 ~ Guy de Montfort, Count of Nola, m. Margherita Aldobrandeschi;
                      • K1 ~ Anastazia de Montfort, lvd:1293, m. Romano Orsini;  <==  Orsini family

Back to Main Page


Carcassonne in the Middle Ages.
Simon de Montfort became the leader of the Albigensian crusade after the the capture of Carcassone, where he distinguished himself as a daring and ruthless military leader. Later he was appointed by lord over all the newly-acquired territory, including Carcassone, as Count of Toulouse and Duke of Narbonne.