Gdansk is a large city on the Baltic Sea in the Polish Pomeranian Voivodeship (Pomorskie) with about 470,000 inhabitants. It is lying on the Motława River (German: Mottlau) on the Gdansk Bay.
The city of Elbląg (historically Elbing; population in 2023: 112,923) is located in the northern Polish Warmian-Masurian Voivodeship, just a few kilometers south of the Vistula Lagoon and around 50 kilometers southeast of Gdansk. In the Middle Ages, Elbląg was one of the leading Hanseatic cities and one of the headquarters of the Teutonic Order. Its importance as one of the leading ports on Baltic Sea was lost in the 15th century, partly due to silting.
In the early modern period, Elbing was predominantly under Polish sovereignty as part of the so-called "Royal Prussia" oder "Polish Prussia". As a result of the First Partition of Poland in 1772 the city came to the newly founded Prussian province of West Prussia, in 1945 to the then People's Republic of Poland.