Potštát Castle, Cultural monument and château in Kyžlířov, Czech Republic

Potštát Castle, also called Puchart, is a ruin on a promontory above the confluence of the Koutecký stream and the Velička, about 0.5 km north of Boňkov. It has two separate cores joined by a narrow rocky ridge: the larger front castle with a trapezoidal plan up to 37 × 28 m, and the rear castle dominated by a residential tower of 12 × 10 m with a shield wall up to 6.5 m thick.

Founded around the start of the 14th century as a centre for colonising the Oderské vrchy and controlling the road from Silesia to Hranice, the castle was first mentioned around 1320, when Záviš of Potštát took his name from it. In the mid-14th century it passed to the lords of Kunštát; in 1377 Boček of Kunštát recorded his wife Eliška's dowry there. Probably captured by Margrave Prokop in 1394, it was never rebuilt, and a 1408 purchase contract mentions only the hillfort.

The castle's name comes from a mistake: in the early 19th century Josef Heřman Gallaš mislabelled it Purchart. The nearby inn U Tlustého Jana is named after a former landlord so stout he needed a pulley to rise from a special chair.

The grounds are reached by marked pathways that remain walkable in various weather conditions. Sturdy footwear is recommended since the ground is uneven and some sections have steep slopes.

The two castle cores lie about 150 metres apart, linked only by a narrow rocky ridge; the rear core's residential tower, 12 × 10 metres, kept door and window jambs in its ground floor and stood behind a shield wall up to 6.5 metres thick. The pub below, U tlustého Jana, is named after a former landlord said to have needed a pulley to rise from a special chair.