Charterhouse Vallis Josaphat, Monastery ruins in Dolany, Czech Republic.

Charterhouse Vallis Josaphat sits on the left bank of the Dolanský stream and preserves the stone foundations and walls of a medieval Carthusian monastery. The remaining structures show how the buildings were arranged to support the monks' daily routines of prayer, living, and work.

The monastery was founded in Tržek by Bishop Albrecht Aleš of Šternberk, but poor security led the monks to move to Dolany, where construction began in 1389 with support from Petr of Šternberk and Margrave Jošt. The foundation stone of the monastery church was laid by Jošt in 1390, and the basic layout was completed by 1396. In 1425 soldiers of Dobrš of Tvorkov seized the site and fortified it, and in 1437 the Olomouc townspeople bought and demolished it.

The monastery shaped how Carthusian traditions took root in Moravia and influenced the spiritual practices of the region during the Middle Ages.

The site is located in the Olomouc Region and can be reached on foot via local paths around Dolany. Visiting on a dry day works best, as it allows you to safely explore the ruins and walk through the grounds.

The monastery was not founded by Jobst of Moravia: it was founded in Tržek by Bishop Albrecht Aleš of Šternberk, and the monks moved to Dolany in 1389. Jobst laid the foundation stone of the monastery church in 1390. The priors of two neighbouring charterhouses marked out the cloister in 1396.