Ilsenburg Abbey (Kloster Ilsenburg) was a monastery of the Benedictine Order located at Ilsenburg near Wernigerode, in Saxony-Anhalt in Germany.The monastery was built on land given for the purpose in 1003 by Emperor Henry III to the Bishop of Halberstadt, and had been founded by 1009. In 1525 it was stormed, plundered and large...