sentences:  In 1305 at the time of Bishop Ulrich of Naumburg, Dahlen was sold to Bodo IV Von Ilburg, lord of Liebenwerda, for the sum of 500 Marks of Freiberg Silver to Otto V von Ilenburg, lord of Uibigau.Later, it was returned to the possession of the Naumburg Stift and in 1367 Bishop Gerhard sold with Strehla, Leisnig, Tiefenau and Elsterwerda to Herzog Polk, Elector of Schweinitz and Margrave of the Lausitz; on his death it returned once again to Naumburg.Thereafter, in the time of the Emperor Carl IV, Dahlen was owned by the royal house of Saxony after an agreement was reached on 23 April 1459 between King George of Bohemia, the Frederick, Elector of Saxony and Duke William of Saxony.