The Old Parish Church of Gries contains several precious works of art. Some parts of the original Romanesque church are still preserved, as parts of the walls of the tower and nave. There has probably been a settlement in the area since Roman times.
The Gothic, polygonal choir was built in 1414. During the course of the 16th century the Romanesque church was rebuilt. Star-shaped vaults were inserted in the nave, and in 1529 a church porch, also with star-shaped vaults, were built. The tower also received its pointed spire at this time. The chapel dedicated to Saint Erasmus was finished already in 1519.
In 1788, the church lost its position as parish church of Gries. The Muri-Gries Abbey from now on instead served this purpose. The church is surrounded by the old cemetery of the Parish, which since 1922 is closed for new graves. Among the people buried here, Austrian admiral and explorer Bernhard von Wüllerstorf-Urbair is among the more well-known.
The old parish church contains two pieces of art of high value. The one is a Romanesque crucifix, dating from circa 1200 and probably made abroad (possibly northern France)
The other is a late Gothic, carved wooden altarpiece made by Michael Pacher. Pacher made the altarpiece between 1471 and 1475. During the Baroque era, the altarpiece was considered out of date and replaced with a Baroque high altar. Pacher's altarpiece was placed in the St. Erasmus' chapel of the church. It has remained there since; it has however lost its wings, its predella, its top and other details.
References:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.