Liebenzell Castle, Medieval castle in Bad Liebenzell, Germany.

Liebenzell Castle is a hill castle on a sloping spur of the Schlossberg above Bad Liebenzell. Its irregular pentagonal layout is dominated by a 17.5-metre-high shield wall, 2.7 metres thick, into which a square bergfried is integrated. The six-storey keep rises 32 metres, has walls two metres thick and a footprint of about 9 by 9 metres, and can be climbed as an observation tower. The Palas features ornamental pointed-arch openings.

The castle was built in the 12th century by the counts of Calw as a stronghold in the region. In 1196, ownership passed to the counts of Eberstein, marking a shift in power among the local nobility.

The castle is owned by the International Forum of Liebenzell Castle, an academy for political education and international youth exchange. It serves as a youth training and conference centre, and a restaurant operates on site. A local legend tells of the giant Erkinger, said to have built a tower here and to have abducted brides from wedding feasts.

The grounds can be explored on foot, and the hilltop position offers open views over the surrounding landscape on clear days. A restaurant on site operates year-round, but opening hours for other parts of the castle may vary by season, so checking ahead is a good idea.

The fortification has an unusual five-sided layout that wraps around the square keep and includes a medieval latrine chamber. This shape shows how builders of the time worked practical needs into the defensive design rather than treating them separately.