The village has existed for at least 770 years; it is first mentioned in 1237-1240 under the name Mokka in the notes of Albeus, Dean of Nitra, who had been asked by Béla IV of Hungary to catalog the territories of villages in the area.
During the Árpád dynasty the village was owned by the king; The income from the land was used to maintain the Queen's court. The king's hunters and falconers lived in Mocsa.
In 1291, Fenena of Kujavia, the first wife of Andrew III. of Hungary, the area of the village to Lodomer, the Archbishop of Esztergom. From that point on, the land was largely owned by the bishops.
During the reign of Béla IV, Mocsa had about four hundred and fifty inhabitants. The villages in the area were mostly razed during the Tatar invasions, but the survivors helped repopulate Mocsa by banding together. Over the centuries, the village has been attacked more than once. Its survival is due to its location: a swampy, weedy, low-lying country unattractive to the invaders, who preferred to travel across hilly lands that gave them expansive views of the locations below.
After the Battle of Mohács, the country suffered from years of taxation and occupation by the Ottoman Turks. Many villages died out completely, and their territories were linked to the surviving villages - Mocsa was one of the survivors.
The Roman Catholic Church of Mocsa was built in 1756 in Baroque style. It was burned down along with the village in 1903, but was restored the next year.
Source: Wikipedia