The Livrustkammaren ("Royal Armoury") is a museum in the Royal Palace in Stockholm, Sweden. It contains many artefacts of Swedish military history and Swedish royalty. Seen from an international perspective, the Royal Armoury's collections are of world-class. It is the oldest museum in Sweden, established in 1628 by King Gustavus Adolphus when he decided that his clothes from his campaign in Poland should be preserved for posterity. Tours of the museum are conducted for people with special interests.