The main Hungarian cathedral of a Roman-Catholic diocese in Györ was built in the 11th-12th centuries. His original look was made in the Roman style, now there is kept a helmet of Ladislaus I.

From the time of construction, only the apse of the cathedral has been preserved. It was rebuilt to the Gothic style after the Tatars’ invasion: in the second half of the 15th century started the reconstruction of the Gothic church.  It was completed in the 1480s by an episcope Orban. This two-tier church was described by a king’s Matthias court historian as an extremely vivid cathedral. That looks it had for 100 years: completely destroyed in the 16th century the cathedral was established again to the project of an Italian architect Giovanni Battista Rava.

Its rebuilding to a Baroque-style basilica began in the middle of the 17th century. The tower we can see today was constructed by the order of an episcope Georg Secheni in the 1680s. Later the builders completed the cathedral’s altars, in the year 1774, on the northern and southern sides of the basilica they installed the gates of red marble. The interior of the church was finished in 1780 with frescos of Franz Anton Maulbertsch, creating the unique pieces of art on the walls and the ceiling of the church. 

The 7th September of 1996, the Pop John II visited the cathedral, during its visit to Györ. He met priests and devotees of the diocese and prayed to Our Lady on a tomb of an episcope Vilmos Apor. The 17th March 1997, a cardinal Gilberto Agostino, Papal legate, celebrated a mass with all the Hungarian episcopacy. 

In 2017, Dormition Cathedral was restored – firstly, from May to December, in addition to the sanitary, lighting, heating, security and sound systems, the workers replaced the limestone facade by a tile and restored the altar of Blessed Virgin. Later they renewed the ceiling’s frescos of Franz Anton Maulbertsch, altars on the sides, pictures, sculptures, walls, and marble surfaces.