royal palace 88The history of the Royal Palace of Madrid begins during the ren of Emir Mohamed Iᵉʳ (9ᵉ century) and continues with the kings of Spain.. The latter chose to build a fortress inTours of the Royal Palace . The Royal Palace in Oslo is usually open to the public every year from late June until the middle of August. The guided tour takes visitors through some of the most important and lovely rooms in the Palace.