Medieval Riddarholmen the Church is the main burial place of Swedish monarchs. It is located on the island of Riddarholmen (translated as "Island of the knights"), near Stockholm Royal Palace. The congregation was dissolved in 1807 and today the Church is used only for burial and memorial services, as well as a Museum, historical monument and a place for exhibitions and other events. Swedish monarchs found their final resting place here, since Gustavus Adolphus (d. 1632) to Gustaf V (d. 1950), the only exception is Queen Christina, who is buried in St. Peter's Basilica in Rome. The earliest burials belong to Magnus III (d. 1290) and Charles VIII (d. 1470 ).

The Church building is one of the oldest in Stockholm, still preserved some parts of which date back to the late 13th century, when it housed the Franciscan monastery of the Greyfriars. After the reformation the monastery was closed and converted into a Protestant Church.

The Church consists of three naves, built in the Gothic style, but the brick building immediately acquired its modern look. The initial draft of the spire of the building was designed by Willem Bout and hoisted to its rightful place in the reign of Johan III (1537 – 1592), but in 1835 it was destroyed by lightning and was replaced by a cast-iron spire, which survived until our days. When Johan III Riddarholmen Church experienced the highest dawn and found its finery.

Inside the Church you can see the coats of arms of knights of the order of Seraphim. If one of the knights of the order dies, his coat of arms hanging in the Church, and at his funeral within an hour of sounds of bells ringing.