Henry Jasomirgott, who anticipated the king's intentions, did not appear under the pretext that he had not been duly summoned. After several attempts to make an arrangement, Frederick left for Italy and was crowned Emperor on 18 June 1155. Back in Germany, Frederick resolved upon returning the Duchy of Bavaria to Henry the Lion. He finally was able to hold a secret meeting with Henry Jasomirgott on 5 June 1156 near the Bavarian capital Regensburg. After the conditions were fixed, the emperor called for another diet in Regensburg on 8 September, where the Babenberger officially renounced the Bavarian duchy, which passed to the Welf Henry the Lion. To make up for the loss, Austria with the explicit consent by the Princes of the Holy Roman Empire, led by Duke Vladislaus II of Bohemia, was raised to the status of a duchy. Frederick thereby avoided the degradation of Henry Jasomirgott to the rank of a margrave, which would have lacked any explanation and furthermore would have exposed Henry Jasomirgott to persecution by the Welfs. On the other hand, Henry the Lion only received a diminished Bavarian duchy and Henry Jasomirgott's right of would prevent any succession of the House of Welf in Austria. Disappointed, Henry the Lion turned to his Saxon estates in Northern Germany. Frederick prevailed, settling the long-time conflict, keeping the Welfs covered and securing support by the House of Babenberg. Only much later, the document turned out to be the founding act for what was to become a nation. 1156 is therefore sometimes given as Austria's date of independence, which it gained from Bavaria. Application 13th century succession crisis Because the Babenberg Austria was inheritable by female lines, two rival candidates emerged after the last male Babenberg Frederick II, Duke of Austria, Styria and Carinthia died in 1246. Herman VI, Margrave of Baden (died 1250), second husband of Gertrude of Babenberg, the daughter of the late Henry of Mödling, the elder brother of the now late Duke Frederick. She was the primogenitural heir of Duke Frederick and the entire Babenberg line of Dukes of Austria. Her first husband Vladislav of Bohemia, Margrave of Moravia (died 1247) had already claimed the Austrian duchy against duke Frederick, as Gertrude was heiress of the elder brother. After Herman's death, her third husband Roman, Prince of Novogrudok (married 1252, divorced 1253) continued the claim in 1252-53. And then Gertrude and Herman's son