Schloss Haigerloch, Renaissance castle in Haigerloch, Germany

Schloss Haigerloch is a Renaissance castle perched on a hilltop, rebuilt between 1580 and 1588 from an earlier fortress. The structure features a central courtyard enclosed by residential buildings dating from the 16th century.

The castle originated around 1200 when the Counts of Hohenberg built a fortress on this site. A major transformation into a Renaissance residence took place in the late 16th century.

The castle church of St. Trinitatis displays a Renaissance altar from 1609 decorated with around 60 hand-carved wooden figures. This religious decoration reflects the importance of the place as a residence for a wealthy family.

The castle stands above the town of Haigerloch; the former castle church of St. Trinitatis now serves as the town parish church and can be visited. The hotel and cultural centre that operated in the castle closed in 2022, so interior rooms are not open. The Atomic Cellar Museum lies in the rock below the church.

A nuclear research laboratory was hidden beneath the castle in rock formations during World War II. This secret facility is now open to visitors as the Atomic Cellar Museum.