German regional gazetteers and Wikipedia articles for Prussian-era and present-day localities · Meyers Gazetteer; GOV/genealogy.net; AGOFF; Wikipedia (de/en)
Karlsruhe, Deutsch-Krone, Marienwerder, Westpreussen, Preussen
Meyers Gazetteer entry 'Karlsruhe 3)' (Type Gut with Vw. Paulshof, AG Deutsch-Krone, StdA Preussendorf, population 222). Meyers has no coordinate for it and falls back to the Kreis seat; de.wikipedia 'Kreis Deutsch Krone' maps Karlsruhe to Lugi Waleckie and pl.wikipedia 'Lugi Waleckie' gives 53.214722, 16.392222.