Zeillern Castle, located in the heart of the Mostviertel region of Lower Austria, blends timeless historical charm with modern comfort. Originally a water castle mentioned in 1052, the property was significantly transformed in the 16th century into Renaissance style by Wolf Friedrich Freiherr von Tattenbach. The castle has served diverse roles, functioning as a hospital during both World Wars and as a recovery home before becoming a seminar hotel in 1988. Today it operates as a 3-star hotel with eleven seminar rooms and modern facilities, hosting conferences, training events, and weddings while preserving its historic character.