A horizontal triband flag of red, yellow (double width) and red; charged with the Spanish coat of arms off-centred toward the hoist. Two horizontal stripes of red (top and bottom) and yellow (middle). The yellow stripe is twice the height of each red stripe.

Circa: 1492 A.D. Red and Grey with gold castles and lions. The earliest Spanish flag was an ornate combination of emblems of Spain's two provinces in 1492 - Castile and Leon. The red section represents the color of Castile and the grey represents Leon.

The first flag to represent all of Spain was the Cross of Burgundy, which reached Spain with the marriage of Philip the Fair and Joanna of Castile (perhaps better known as Juana la Loca or Joanna the Mad) in 1508.

This flag is the "Cross of Burgundy," one of the standards of Spain used by the Spanish military from the fifteenth century to 1843. The basic pattern is of a red saltire ("cross") resembling two crossed, roughly-pruned branches on a usually white field.