From Wikipedia, the free encyclopedia
Prince Oskar of Prussia (Oskar Karl Gustav Adolf) (July 27, 1888 in Potsdam, Germany–January 27, 1958 in Munich, Germany) was the son of Kaiser Wilhelm II and Duchess Augusta Viktoria of Schleswig-Holstein.
He was married in 1914 to Countess Ina-Marie von Bassewitz (1888–1973). This marriage was morganatic, and so upon marriage Ina-Marie was created Countess von Ruppin. In 1920, she and her children were granted the rank of Prince/ss of Prussia with the style Royal Highness. They had four children.
- Prince Oskar of Prussia (1915–1939) who died in World War II
- Prince Burchard of Prussia (1917–1988) who married but had no issue
- Princess Herzeleide-Ina-Marie of Prussia (1918–1989) who married and had three children
- Prince Wilhelm-Karl of Prussia (born 1922) who married and had three children, remains as of 2007, the last living grandchild of Kaiser Wilhelm II
