Prinds Christian Augusts Minde
Mangelsgården was built in 1670-1698. The building was originally raised as a holiday residence with pavilions, dams and fountains. The first known owner was Danish general Hans Ernst von Tritzschler (1647-1718). The next owner was general Fredrik Ferdinand Hausmann (1693-1757), son of Caspar Herman Hausmann and Karen Toller. Hausmann built the garden with fish ponds, pavilions and food production. The third owner was general Johan Mangelsen (1694-1769).
A group of prominent citizens formed the "Prinds Christian Augusts Minde" charity in 1809, in honour of the Danish Governor-General of Norway, Christian August. The charity was set up to help the poor and unemployed: The number of poor people had increased dramatically in the city, and the prisons were overcrowded. The charity bought Mangelsgården in 1812. The facility next housed the hospital for the poor (fattigsykehus) and public kitchen (dampkjøkken) together with separate living quarters for men and women. The facility also held a police office and jailhouse (dollhus). 
Most notably the spinning factory of the institution for the care of the poor (Fattigvesenet) was also moved here. The factory soon turned into a workhouse focused on textile production, stone cutting, and woodworking. The complex was expanded several times and in 1833 a factory building drawn by architect Christian H. Grosch was erected.
Christiania Insane Hospital (Sinnssykeasyler) was moved to Mangelsgården in 1829 and was expanded after the new lunatic asylum laws were passed in 1848. It closed down in 1908.
The main building of Mangelsgården was protected as a cultural heritage site in 1927. Historic protection was extended to cover the entire complex in 2009. The plant is currently owned by municipalities and is run by Omsorgsbygg Oslo KF, an enterprise which builds, maintains and manages municipal purpose buildings within the city of Oslo.
- The Directorate for Cultural Heritage's protection resolution
- Oslo City's Cultural Heritage Management Office
- Wenche Blomberg: Christiania Dollhus - mellom dårekista og asylet. University of Oslo, 2005
- Wenche Blomberg: Prinds Christian Augusts Minde - historie og visjoner om de fattiges kvartal. Oslo, 2006
- Carl Frederik Bricka. "Tritzschler, Hans Ernst, 1647-1718". Dansk biografisk Lexikon. Retrieved November 1, 2017.
- "Sinnssykeasyler". bergenbyarkiv.no. Retrieved November 1, 2017.
- "dampkjøkken". Store norske leksikon. Retrieved November 1, 2017.
- Research project about Prinds Christian Augusts Minde, the Institute of criminology at the University of Oslo[permanent dead link]
- "Mangelsgården". Industrimusem. Retrieved November 1, 2017.
- Oslo City Archives about Prindsen
- "Om Omsorgsbygg Oslo KF". oslo.kommune.no. Retrieved November 1, 2017.
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