Baltic, though a Polish corridor running between Eastern Pomerania and EastPrussia to Danzig denied her all she desired", page 174, author Stanley Mease
Downfall of Prussia 1600–1947. Cambridge: Belknap Press of Harvard. p. 776. ISBN 0-674-02385-4. Clark, Peter B. (2013). The Death of EastPrussia - War and
Encyclopedia, Volume 1. ABC-CLIO. 2002. P. 304: "Friedland... A battle in EastPrussia between French forces, ultimately numbering 80,000, commanded by Napoleon