The Kingdom of Poland (Polish: Królestwo Polskie) originated with the coronation of Bolesław I the Brave of the Piast dynasty in 1025. It united with Lithuania in 1385 under the new Jagiellon dynasty, after which it continued to exist in the Polish-Lithuanian Commonwealth (1569). It was ultimately erased from the map in 1795, after the Third Partition of Poland by Russia, Prussia and Austria.
The coat of arms of Poland dates back to the royal banner of the Piast dynasty: a red shield displaying a white eagle with a gold beak and talons, wearing a gold crown. The eagle and red shield allegedly refer to the legendary founder of Poland, Lech, who is said to have seen a white eagle with sun rays shining on its wings against the red sunset.