The origin of the current flag of Spain is the naval ensign of 1785, It was chosen by Charles III himself among with 12 different flags designed all proposed flags were presented in a drawing which is in the Naval Museum of Madrid.
The things on the Spain flag a horizontal tricolour 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 size of the red stripes.
