parts 1–3, Poznań Gerard Labuda (ed.), Historia Pomorza, vol. IV (1850–1918), part 1, Toruń 2003 B. Śliwiński, "Poczet książąt gdańskich", Gdańsk 1997 German: Werner Buchholz et al., Pommern, Siedler, 1999/2002, , 576 pages; this book is part of the Deutsche Geschichte im Osten Europas series and covers the history of the Duchy of Pomerania and Province of Pomerania from the 12th century to 1945, and Western Pomerania after 1945. Oskar Eggert, Geschichte Pommerns, Hamburg 1974, ; this book treats the history of Pomerania from pre-historic times up to about 1500. History of Prussia Kashubians Pomerania History of Pomerania by period Pomerania