In maps of the 19th and 20th centuries, the territories of Ukraine were usually coloured yellow. The "gold" (Or) is nearly always represented by a shade of yellow, as there is no distinct colour "yellow" in heraldry; they both count as "Gold". There is a theory that the colors have arrived in the area of present-day Ukraine, together with the governor Prinz Władysław II Opolczyk, who established them to the Principality of Ruthenia on model of his native Upper Silesia.