The oldest part of the Ösmo Church was constructed in the latter part of the 12th century. The church was modernized in the 14th century, when the old chancel was demolished and replaced by one which was both taller and wider. The church largely gained its present appearance during the 15th century.
The interior of the church is decorated with frescoes added just after the middle of the 15th century. It is said that they were painted by Albertus Pictor, the most famous church artists of the medieval period. The church also contains a large number of coats of arms used in processions, and a triumphal crucifix.
References:The Pilgrimage Church of Wies (Wieskirche) is an oval rococo church, designed in the late 1740s by Dominikus Zimmermann. It is located in the foothills of the Alps in the municipality of Steingaden.
The sanctuary of Wies is a pilgrimage church extraordinarily well-preserved in the beautiful setting of an Alpine valley, and is a perfect masterpiece of Rococo art and creative genius, as well as an exceptional testimony to a civilization that has disappeared.
The hamlet of Wies, in 1738, is said to have been the setting of a miracle in which tears were seen on a simple wooden figure of Christ mounted on a column that was no longer venerated by the Premonstratensian monks of the Abbey. A wooden chapel constructed in the fields housed the miraculous statue for some time. However, pilgrims from Germany, Austria, Bohemia, and even Italy became so numerous that the Abbot of the Premonstratensians of Steingaden decided to construct a splendid sanctuary.