The Imperial Abbey of Kaisersheim (German:Reichsstift Kaisersheim or Kloster Kaisersheim), was a Cistercian monastery in Kaisersheim (now Kaisheim), Bavaria, Germany. As one of the 40-odd self-ruling imperial abbeys of the Holy Roman Empire, Kaisersheim was a virtually independent state. Its abbot had seat and voice at the Imperial Diet where he sat on the Bench of the Prelates of Swabia. At the time of its secularisation in 1802, the Abbey covered 136 square kilometers and has 9,500-10,000 subjects. History The monastery was founded by Henry II, Count of Lechsgemünd (d. 1142) and his wife Liutgard, and was a daughter house of Lucelle Abbey in Alsace. Count Henry's initial gift of the land was made in 1133; the foundation charter was dated 21 September 1135. The first church was dedicated in 1183 by the Bishop of Augsburg, but was damaged in a fire in 1286, and re-built in its entirety between 1352 and 1387, when the new building was dedicated. The foundation charter guaranteed the new monastery immunity and independence from secular powers, but on the extinction of the Counts of Lechsgemünd in 1327, their territories passed to the Wittelsbach Counts of Graisbach, who were unwilling to honour the original terms. Although in 1346 the abbey succeeded in obtaining from the Emperor Charles IV a confirmation of the rights included in the charter, and was declared an Imperial abbey (), the Wittelsbachs were not inclined to honour it. In 1505, the territory of Pfalz-Neuburg was created, which inherited the rights of the County of Graisbach, including territorial rights over Kaisheim. During the Reformation, the conversion of Otto Henry, Duke of Neuburg and Elector Palatine, to Protestantism, led to fears the abbey would be dissolved, although this danger soon passed. Finally, in 1656 the then abbot George IV Müller reached agreement with Duke Philip of Pfalz-Neuburg that the abbey's Imperial immediacy () would be respected. This carried with it the obligation however to provide troops to the imperial army when required, and from this date onwards the abbey had to accommodate a small standing force of soldiers of some 80 men. The buildings underwent a major re-building in the 1720s in the Baroque style. In 1802, the abbey was dissolved in the secularisation of Bavaria, and its assets taken by the Bavarian state. The premises were at first used for military purposes, later as accommodation for the displaced Bavarian Franciscans. From 1816,