One of the oldest buildings in Stockholm, Riddarholm Church is the traditional burial church for Swedish royalty. Originally built as a monastery, parts of the church date back to the late 13th century. It was transformed into a Protestant church after the Reformation and the congregation was eventually dissolved at the start of the 19th century. Today, it is used only for burial and commemorative purposes. Nearly every Swedish ruler from Gustavus Adolphus (1632) to Gustav V (1950) has been buried in the Riddarholm Church, as well as Magnus III (1290) and Charles VIII (1470).
The interior of the church features dozens of coats of arms of the knights of the Order of Seraphim, a tradition that dates back to the middle of the 18th century. When a knight dies, his coat of arms is hung inside the church.
Riddarholm Church can be reached by taking the T-bana (subway) to Gamla Stan and walking five minutes to Riddarholmen, or by taking bus 3 or 59 to Riddarhustroget. Guided tours are available during from mid-May to mid-September, daily at 11:30 a.m. They last about 45 minutes and cover everything from the early history of the church to a history of the royal family and the history of Stockholm.