St. Mary's Church, Oslo

[1][2] St. Mary's Church had been built of stone in stages with final additions made in the 14th century.

The church was set on fire in connection with the Swedish war of independence from the Kalmar Union in 1523.

[3] Excavations were first conducted in 1867 by Nicolay Nicolaysen (1817–1911) under the direction of Gerhard Fischer (1890–1977) and later in the 1960s under the leadership of Håkon Christie (1922–2010).

Remains of two people, deemed to be King Haakon V and his Queen consort Euphemia of Rügen, were discovered during excavations of the ruins of the church and re-interred in the Royal Mausoleum in Akershus Castle.

[4] The area where the Norwegian Crown Prince Residence of Skaugum is located today in the municipality of Asker, originally belonged to the St. Mary's Church.