Some facts about the Spanish flag include that Spain has a strict protocol regarding the flag's display, its official title is Bandera de España, the origin of the current flag of Spain is the naval ensign of 1785. Other facts include Queen Isabella II made it Spain's official flag in 1843, and the coat of arms on the flag is quartered to display the emblems of the traditional kingdoms of Spain.
The flag's official title, "Bandera de España" means Flag of Spain. It is colloquially known as "la Rojigualda" or the red-weld.
Official protocol for the flag's display dictate that it can only be flown horizontally from public buildings, private homes, businesses, ships and town squares. It can also be flown during official ceremonies. It should be flown from sunrise to sunset. Government offices in Spain and abroad must fly the flag on a 24-hour basis. While being flown at night, it must be properly lit.
Antonio Valdés y Bazán created 12 different flag designs for Charles II.
The flag's coat of arms represents the emblems of Castile, Leon, Navarre and Aragon. Granada is represented by a pomegranate and the two columns on the flag represent the Pillars of Hercules, Gibraltar and Ceuta.