The flag of England is derived from Saint George’s Cross (heraldic blazon: Argent, a cross gules). The association of the red cross as an emblem of England can be traced back to the Middle Ages, and it was used as a component in the design of the Union Flag in 1606. Since the 1990s it has been in increasingly wide use, particularly at national sporting events. Blue Dark Tone. Zoom In. Full HD.