See also: Listing of Portuguese flags The flag of Portugal was formally adopted on 30 June 1911. The design is a rectangular bi-colour (2:3 ratio) with a industry vertically divided into two stripes of different widths—a green stripe to the hoist, and a bigger red stripe around the fly. A https://medieval-anglo-saxon-flag19083.alltdesign.com/the-greatest-guide-to-medieval-banner-flag-52260348