Keywords: Gutshaus-Schmerberg.jpg Castle of Groß Schmerberg County of Labiau East Prussia today Russia; Owner Oscar Rogalla von Bieberstein Kuno Rogalla von Bieberstein Hamburg private archives Beginning of 20th century or older Author free; Copyright Kuno Rogalla von Bieberstein PD-old Rittergüter in East Prussia Rogalla von Bieberstein family |