Hasserode Castle (German: Burg Hasserode) in the quarter of the same name in the town of Wernigerode am Harz was a medieval fortification whose site is near Hasserode station on the Harz Narrow Gauge Railways. Today there are no visible traces left of the castle.
The archival documented history of the Harz forests around the once independent municipality of Hasserode, that has been part of the borough of Wernigerode since 1907, go well back into the Middle Ages. Originally, this wooded region belonged to an imperial forest before it was enfeoffed by the Holy Roman emperors and German kings to the counts of Wernigerode, first mentioned in 1121, who came from Haimar in the Diocese of Hildesheim.
The counts of Wernigerode, like most ruling dynasties, endeavoured to extend their sphere of influence. In the Harz Foreland at the foot of the mountain range called the Huy they had freehold estates in various villages. These villages were, however, under the counts of Regenstein. In a clever move, the Wernigerode counts attempted to bind the subjects of these villages closer to them by granting timber rights in their forests in the Harz to the local farmers. For example, in 1253, there is already mention of the Hadebergeberg (now known as the Heudeberberg) south of the Augustine hermitage of Himmelpforten Abbey, destroyed in 1525. The Regenstein village of Heudeber was granted timber rights in this forest. Other villages were given similar rights by the counts of Wernigerode no later than the mid-14th century in the woods right and left of the Holtemme and in the Dränge valley. As well as Heudeber, the villages of Reddeber, Danstedt, Ströbeck, Athenstedt, Aspenstedt, Sargstedt and Runstedt also benefited.