Reinhardsbrunn in Friedrichroda near Gotha, in the German state of Thuringia, is the site of a formerly prominent Benedictine abbey, the house monastery of the Ludovingian Landgraves of Thuringia abbey extant between 1085 and 1525. Later used as an administrative seat by the Ernestine dukes of Saxony, the property was turned into a castle and park erected by the Dukes of Saxe-Coburg and Gotha from 1827. Monastery Reinhardsbrunn Abbey () was a house of the Benedictine Order founded by the Thuringian landgrave Louis the Springer in 1085, against the background of the fierce Investiture Controversy between Emperor and Pope. It may have been named after a nearby freshwater spring named Reinhards's Brunnen. It was settled by monks from Hirsau Abbey and soon evolved as a centre of the Hirsau Reforms in Thuringia. Like Hirsau, the Reinhardsbrunn monastery was closely related to Cluny Abbey; it stood under Papal protection from 1093. It was also of significance as the proprietary monastery and burial ground of the Ludovingian landgraves such as Hermann I, who was entombed in the Abbey Church in 1217. Frederick I, Margrave of Meissen was also buried at the Abbey. The monastery became less important after the extinction of the Ludovingians in 1247. Nevertheless, their Wettin successors still used it as a dynastic burial site and an important chronicle was commissioned around 1340, reflecting the history of Thuringia and Germany back to the 6th century. The monastery was looted and sacked during the German Peasants' War in 1525. The monks fled to Gotha and the site was secularized and sold to the Electors of Saxony. In 1530, nine Anabaptists were imprisoned in Reinhardsbrunn by the Lutheran Superintendent of Gotha, Friedrich Myconius. Six of them who refused to recant their faith were executed in the monastery park. These were the first Anabaptists that were executed for their beliefs on Lutheran territory. While the surrounding estates were administrated by Saxon Amtmann officials, the former monastery buildings fell into ruin. Palace and park Reinhardsbrunn was part of the Ernestine duchy of Saxe-Weimar from 1572. Duke Friedrich Wilhelm I had parts of the monastery rebuilt as a local administrative seat. His brother, Johann II, planned a reconstruction of the palace, but died before construction could start, however, his widow, Dorothea Maria of Anhalt, initiated some renovations on the site. The main castle building, restored in about 1706 under Duke Frederick II of Saxe-Gotha-Altenburg, was