The village already had a church in 1600, and the villagers were all Catholic. With the spread of the Reformation, the Bakics extended the Evangelical religion to their dominion, so the hermits had to convert to this belief. Between 1613 and 1660 the village even had a pastor and evangelical services were held in the Catholic church.
In 1712 the Danube flooded again and destroyed the church.
After the Reformation, the church in Moson became Calvinist, but at the end of the 17th century it was returned to the Catholics. The present Baroque parish church was rebuilt on a new site in 1757. At that time, John of Nepomuk, one of the most popular saints of the 18th century, became the patron saint of the church, along with Gotthard, the patron saint of the old church.
The vault of the sanctuary originally depicted the apotheosis of St John of Nepomuk and St Gotthard. The frescoes, painted in the 1770s, are now on display in the Hanseatic Museum. The nave vaults were painted in 1938, but during the 1995 renovation, the sanctuary was completely redecorated. The stained glass windows of the church were made in 1891-92.
The Baroque high altar is a columned, canopy-domed structure, a copy of the altar in Mariazell. The side altars to St Joseph and St John of Nepomuk date from 1770. The church's most recent pictorial representation is the Stations of the Cross, made of enamel images.
The neo-Baroque renovation of the main façade in 1913 added statues of St. Vendeli and St. Florian to the niches, which had been empty until then.