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 Portugal green was harder to come up with, given that it was not a traditional colour of the Portuguese flag's history. Eventually, it was justified on the grounds that, during the 1891 insurrection, this was the colour present on the revolutionary flag that "sparked the redeeming lightning" of republicanism. Finally, white (on the shield) represented "a beautiful and fraternal colour, into which all other colours merge themselves, colour of simplicity, of harmony and peace", adding that "it is this same colour that, charged with enthusiasm and faith by the red cross of Christ, marks the Discoveries epic cycle". The Manueline armillary