Tricolour (flag) orange-white-blue design of the Prince's Flag ("Prinsenvlag", predecessor of the flags of the Netherlands and Luxembourg), used from 1579 by William I of Orange-Nassau in the Eighty Years' War, establishing the independence of the Dutch Republic from the Spanish Empire. Though not the first tricolour flag, one of the most famous, known as "Le Tricolore", is the blue, white and red (whence also called "Le Bleu-Blanc-Rouge") flag of France adopted in the French Revolution. With the formation of French client republics after 1795, the revolutionary tricolour was exported and adopted more widely in Europe, by the Republic of Alba 1796
Flag of the Second Spanish Republic have the Spanish Republican coat of arms at the centre (quarterly of Castile, Leon, Aragon and Navarre, enté en point for Granada, ensigned by a mural crown, between the two Pillars of Hercules). This coat of arms originated in 1868 and had been used then by the Provisional Government and later by the First Spanish Republic. The civil ensign or merchant flag would be a simple tricolour without the coat of arms. The term "la tricolor" to refer to the flag is reminiscent of the French tricolor which, since the French Revolution of the late 18th Century, has made a