 In 1397 the castle, village and the rest of the Habsburg "Eigenamt" were gifted to Königsfelden Monastery in Windisch.On 16 November 1414, Emperor Sigismund called the Council of Constance to settle the Western Schism between the three popes (Benedict XIII, Gregory XII, and John XXIII), all of whom claimed legitimacy.Frederick IV of Habsburg sided with John XXIII.