Former Benedictine monastery Schönthal, Medieval monastery in Langenbruck, Switzerland.

The former Benedictine monastery Schönthal stands northeast of Langenbruck in the canton of Basel-Landschaft. Its Romanesque church, consecrated in 1187, has a west facade of seamless ashlar masonry with a portal, a relief of the Lamb of God and two round-arched figure niches. The church and convent buildings are still roofed with bricks fired in the church itself between 1645 and 1682.

The earliest documentary reference to a monastic community at Schönthal dates from 1145; a charter of 2 March 1146 names the monastery and its founder, Count Adalbero of Frohburg. The monastery church was consecrated in 1187. A double monastery is first mentioned in 1266, and the male convent had disappeared before 1300. In 1415 the women's convent was handed to the Servite order. On 1 May 1529 Basel's council dissolved the monastery during the Reformation, and the properties passed into private ownership in 1836.

Since 2000 the former monastery has been a cultural meeting place within Sculpture at Schoenthal, with contemporary sculptures placed in the buildings and grounds. The Agnus Dei in Langenbruck's coat of arms recalls the monastery, though its patron saint was Mary; the same lamb appears on a 1225 seal and on the baptismal bowl now in Bennwil's church.

The site lies northeast of Langenbruck above the upper Hauenstein pass, with the church and convent buildings grouped together and the former farm estate of around 100 hectares around them. The grounds are reached on foot from the village; the terrain is hilly, so sturdy shoes help. Since 2000 the buildings have served as a cultural meeting place within Sculpture at Schoenthal.

The monastery church was used as a barn for almost 500 years after the Reformation, then housed a brick kiln from 1645 to 1682; its roof still carries those bricks. Until 1998 it served as a woodshed. The west facade bears the inscription "+HIC EST RODO."