See also: List of Portuguese flags The flag of Portugal was officially adopted on 30 June 1911. The design is a rectangular bi-colour (two:three ratio) which has a discipline vertically divided into two stripes of different widths—a inexperienced stripe over the hoist, and a larger red stripe over the fly. https://medievalflagpole64050.activoblog.com/35381285/medieval-flag-pole-options