Saalfeld Abbey

The Benedictine Abbey of Saalfeld was an important medieval Benedictine monastery and Imperial Abbey in Saalfeld, Thuringia, Germany. As an imperial abbey, the monastery was under the direct auspices of the Holy Roman Emperor, and enjoyed a degree of sovereignty equivalent to a small micro state within the Empire. The monastery was founded in 1071 and existed until 1526, when it was secularised during the Reformation.
The abbey was founded in 1071 . The medieval historian Lambert of Hersfeld, held that Anno II, Archbishop of Cologne founded the Benedictine monastery of St. Peter and Paul in 1074 with religious independence and a bequest of land and assets. In 1124 Pope Honorius II confirmed the founding as did the Archbishop of Mainz the following year. Lambert's chronicles are the only written sources on the region's history for much of the High Middle Ages.

Wikipedia