known as Salem Abbey, in the town of Salem. The Upper School is located along the shores of Lake Constance on the outskirts of Überlingen in Spetzgart Castle (since 1928) and on the modern Härlen campus, which was opened in September 2000. School heads Stefan Steinebach, Head of Lower and Middle School Ken Lander, Head of Upper School Notable alumni Cleo von Adelsheim (born 1987), actress and hereditary princess of Oettingen-Spielberg Prince Philip, Duke of Edinburgh (1921–2021) (He later attended the British Salem School at Gordonstoun, as did his sons) Queen Sofía of Spain Princess Irene of Greece and Denmark, daughter of king Paul I of Greece and princess Frederica of Hanover Begum Inaara Aga Khan (as Gabriele Thyssen) Berthold Maria Schenk Graf von Stauffenberg (born 1934), major general and eldest son of count Claus von Stauffenberg Alice Ricciardi-von Platen (1910–2008), psychoanalyst and author of the world's first documentary about the mass killings of disabled and mentally ill persons by the Nazi regime Golo Mann (1909–1994), writer and son of Thomas Mann Monika Mann (1910–1992), writer and daughter of Thomas Mann George Mosse (1918–1999), historian and grandson of Rudolf Mosse Elisabeth Noelle-Neumann (1916–2010), German political scientist (though she earned her Abitur in Göttingen) Ferdinand, Prince of Bismarck (1930–2019), head of the princely house of Bismarck Brian Simon (1915–2002), educational historian Patrice Bart-Williams (born 1979), reggae singer Ekkehard von Kuenssberg CBE (1913–2001), Former President of the Royal College of General Practitioners, Edinburgh, Scotland Christian Kracht (born 1966), Swiss writer Hans-Ulrich von Oertzen (1915–1944), Major in the General Staff, member of the Wehrmacht conspiracy to overthrow Adolf Hitler and participant in the unsuccessful July 20 plot in 1944 Rudolf August Oetker (1916–2007), grandson of the inventor of baking powder, and billionaire German entrepreneur. Eric "Winkle" Brown (1919–2016), test pilot who attended the college as an exchange student 1938–39 Wolfgang Kiessling (born 1937), entrepreneur who is the founder of Loro Parque and Siam Park in Tenerife. References External links Schule Schloss Salem website Schule Schloss Salem Official Twitter Page Round Square Website International Baccalaureate Organization Website Round Square schools International Baccalaureate schools in Germany Private schools in Germany Gymnasiums in Germany Boarding schools in Germany Educational institutions established in 1920 Co-educational boarding schools 1920 establishments in Germany