The imposing two-part moated Burg Gudenau is the largest castle in the municipality of Wachtberg. Its grounds are a special feature, as they are the only Baroque garden under private ownership in the Rhineland.
The castle stands in a flood plain at the foot of Villip, at the confluence of the Godesberg and Arzdorf streams. Built in the early 13th century, the main castle with four wings was extended in about 1560 with extensive grounds to the rear. Additions were made here such as bays and curved roofs. In the 17th century the remarkable gardens were created under an Italian influence. A second lower castle with its imposing five-storey gate tower, a slate hipped roof and an eight-sided clock tower feature on the visible side of the castle. The main castle also possesses a Gothic bay and a round corner tower with a pointed slate dome, whilst the remaining three corner towers have Baroque domes.
The castle is under private ownership.
References:Celje Castle was once the largest fortification on Slovenian territory. The first fortified building on the site (a Romanesque palace) was built in the first half of the 13th century by the Counts of Heunburg from Carinthia on the stony outcrop on the western side of the ridge where the castle stands. It had five sides, or four plus the southern side, which was a natural defence. The first written records of the castle date back to between 1125 and 1137; it was probably built by Count Gunter. In the western section of the castle, there was a building with several floors. Remains of the walls of this palatium have survived. In the eastern section, there was an enclosed courtyard with large water reservoirs. The eastern wall, which protects the castle from its most exposed side, was around three metres thicker than the rest of the curtain wall. The wall was topped with a parapet and protected walkway.