The original home territories of the Habsburgs, the Aargau with Habsburg Castle and much of the other original possessions south of the High Rhine and Lake Constance were already lost in the 14th century to the expanding Swiss Confederacy after the battles of Morgarten (1315) and Sempach (1386). L'Argovie et les autres possessions originelles des Habsbourg au Sud du Rhin et du lac de Constance furent perdus au cours du XIVe siècle au profit de la confédération suisse grandissante lors des batailles de Morgarten (1315) et de Sempach (1386).
