Also Gdańsk was found by Polish Piast dynasty. It's our city,
it always will be. Polish people where minority, because Germanic Teutons slaughtered whole city (including woman and children).
https://en.wikipedia.org/wiki/Teutonic_takeover_of_Danzig_(Gda%C5%84sk)>However, after disputes over the control of the city between the Order and the King of Poland arose, the knights murdered a number of citizens within the city and took it as their own. Thus the event is also known as Gdańsk massacre or Gdańsk slaughter (rzeź Gdańska). 