Gamlehaugen is a Royal Castle in Bergen, Norway, and the residence of the Norwegian Royal Family in the city. Gamlehaugen has a history that goes as far back as the Middle Ages, and the list of previous owners includes many of the wealthiest men in Bergen. Today owned by the Norwegian state, the most recent private owner was Christian Michelsen, a politician and shipping magnate who later became the first Prime Minister of Norway after the dissolution of the union between Sweden and Norway. Michelsen commissioned the construction of the current main building at Gamlehaugen, where he would live for most of the rest of his life.