Flag of Sweden cross pattée. Other historians claim that the Swedish flag was blue with a white cross before 1420, and became blue with a golden cross only during the early reign King Gustav I, who deposed King Christian II in 1521. The exact age of the Swedish flag is not known, but the oldest recorded pictures of a blue cloth with a yellow cross date from the early 16th century, during the reign of King Gustav I. The first legal description of the flag was made in a royal warrant of 19 April 1562 as "yellow in a cross fashioned on blue".
Flag of Norway square at the hoist. This flag was in use as state and war flag until 1815 and as merchant flag until 1821. Later in 1814 Norway was united with Sweden, and on 7 March 1815 a common war flag for both states was introduced by royal order in council, the Swedish flag with a white cross on a red background in the square canton. The same design in a rectangular flag was introduced as an alternate merchant flag in 1818, for use in distant waters, i.e. south of Cape Finisterre in Spain. The current flag of Norway was designed in