Cruz de Borgoña
The Cross of Burgundy was introduced to Spain after the marriage of Joanna of Castile to Philip the Handsome, Duke of Burgundy in 1496. The flag was the primary symbol of Philip the Handsome. It introduced into Spanish vexillology a design that although of foreign origin, would become the primary symbol of Spain. The flag was usually embroidered on white or yellow cloth. The Cross of Burgundy is also known as "The Vane of Burgundy" or as it is derived from St. Andrew's Cross. Since the reign of Charles I of Spain (1516-1556), different Spanish armies have used flags with the Cross of Burgundy on different fields. It was also incorporated in the uniforms of Burgundian archers, and later in the uniforms of the rest of the army. It also appeared on Spanish regimental flags.