Royal Prussia References Royal Prussia European history Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: Prussia…Polish sovereignty, became known as Royal Prussia; thus a wedge of predominantly Polish-speaking territory came to be consolidated between German-speaking East Prussia and the German Reich to the west. Read More…Polish sovereignty, became known as Royal Prussia; thus a wedge of predominantly Polish-speaking territory came to be consolidated between German-speaking East Prussia and the German Reich to the west. Read More