In 1411, Heinrich received homage in Saint Gall. On 6 January 1412, the city appealed to Pope
John XXIII for the confirmation of the new abbot and described in the same letter the abysmal state of the abbey. Thereupon, on 28 March 1412, the Pope commanded the Bishop of Augsburg, the
Judicial vicar of Basel and the Cantor of Saint Felix and Regula to protect the abbey in its rights and property. On 5 December 1411, he even took the abbey under his own protection and confirmed its rights. Emperor
Sigismund provided Heinrich with a confirmation of prerogatives and a
jura regalia on 24 October 1413. In the same year, as it was custom, the abbot on his part confirmed the rights of the cities of Saint Gall, Wil and Wangen. A dispute between the abbey and the Appenzeller, which had begun during the reign of Henrich's predecessor and had culminated in the
Appenzell Wars, in which the abbey was defeated, was in 1412 brought before the federal
Tagsatzung, but the negotiations remained fruitless. In the year 1417, several visitations took place in the abbey. They all concluded that the monastery was in high need of reform. Subsequently, Abbot Heinrich was removed from office and Konrad von Pegau was on 9 May 1418 pronounced abbot in his stead. One last documentary mention of Heinrich as abbot appears on 13 June 1418. Due to an agreement with Abbot Heinrich von Mansdorf, Heinrich von Gundelfingen received a
life estate of 200 gulden on 21 August 1419. After Heinrich von Mansdorf's death, Heinrich, as the only conventual, became again caretaker and governor of the abbey. == References ==