Castle Doubí, Renaissance Revival château in Doubí, Czech Republic

Castle Doubí stands on a rocky promontory above the Ohře River in Doubí, part of Karlovy Vary. Its present Neo-Renaissance form with Moorish elements dates from the 1868–1885 rebuilding by architect František Mader. Medieval masonry survives in the wall enclosing the grounds and in part of the round tower, which now holds a modern chapel.

Doubí Castle was first mentioned in 1369 as the property of the knight Frencl z Dubu. Conquered in 1447, it decayed and was rebuilt as a Renaissance château in the 16th century. A Baroque conversion took place in 1739–1756, and the present Neo-Renaissance form with Moorish elements dates from 1868–1885, designed by architect František Mader.

The name Doubí comes from the Czech dub, oak, and the German Aich means the same. The castle has been a protected cultural monument since 1964. The red-marked NS Doubí–Svatošské skály trail, named for the rock formations downstream, passes the grounds.

The château stands on a promontory above the Ohře in Doubí, on the marked NS Doubí–Svatošské skály trail, so it can be reached on foot from the trail. The building is occupied by a trading company and is not open as a museum; the park with its lookout terrace is the part to see.

The medieval round tower or bastion, now housing a chapel built in 1700, is the oldest surviving masonry; the rest of the buildings date from after 1841. The perimeter wall of the castle grounds is also of medieval origin.