Hazmburk (German: Hasenburg) is a mountain peak in the České Středohoří range found in the Czech Republic, near the town of Libochovice. The mountain has a gothic castle at the top, composed of two towers. The castle was home to Zajíc noble family of which Zbyněk Zajíc was the first to own the castle (since 1335). After 1586, it remains desolate and later, in the period of romanticism, it became a source of inspiration for writers, most notably K.H. Mácha.