In the Castle Museum of the Budapest History Museum, and the associate Matthias Church present in the spring of 2015 the rich history of in the Our Lady of Assumption of Budavár (Matthias) Church in the framework of a large-scale, duplex temporary exhibitions.

This temple is one of the renowned temples of the Catholic Church, a World Heritage Site, which played a prominent role in the history of the city as a coronation church, as a place of representation in the history of Hungary, as well as a parish church in the history of Buda. The history of the church the construction of which began around the middle of the 13th century church is closely intertwined with the history of the country. It was also the main parish church of Buda, also the scene coronation and wedding ceremonies of royal family members by the 15th century. During the Turkish occupation the building was converted into mosque. After it was recaptured, the parish was reconverted into Catholicism by the Jesuits. The church regained its national status after the coronation of Franz Joseph I and the reconstruction works overseen by Frigyes Schulek. At the same time, it received a highlighted rank by making up its environment, and the Fisherman's Bastion, and also by setting up the statue of St. Stephen. This was the place where Franz Liszt's Missa Coronationalis was first performed and Charles IV. was also crowned there.

The Hungarian government funded, large-scale reconstruction works on the historic building began in 2004 and ended in 2014, the result of which was a building that is shines in its old beautiful light. The new historical, archaeological, architectural history, art history, and technical information gathered about the church are now justifiably shown in the framework of a grand-scale summary exhibition with a related scientific catalogue published to accompany it.

Part of the exhibition material is provided by items from the Budapest History Museum Collection. Our museum owns the majority of the medieval stone carvings from the temple, new archaeological finds, as well as about 4700 architectural designs from Frigyes Schulek's great 19th-century restoration ideas, in addition to a lot of old photographs and written archival material. The Budapest-Castle Our Lady of Assumption Parish was a co-organizer of the exhibition that presents so far unknown works of art to the public (goldsmith objects, vestments, furnishings) as well. The so far unexplored Baroque era of the church is represented by an altarpiece that was removed in the 19th century and also some liturgical equipment lists. One of the highlights of the exhibition is a huge plaster maquette designed by Ferenc Schulek Frederick to the Matthias Church that was damaged in World War II, however fragmented; it is an outstanding relic of Hungarian history of architecture. The exhibition covers the presentation of the historic reconstruction that was completed last year as well.

The exhibition is the largest-scale historical exhibition at the Budapest History Museum, which is located in three of the Castle Museum exhibition halls and the Matthias Church.