Paul Langerhans was a German pathologist, physiologist and biologist, credited with the discovery of the cells that secrete insulin, named after him as the islets of Langerhans.

The Evangelisches Gymnasium zum Grauen Kloster, located in suburban Schmargendorf, Berlin, is an independent school with a humanistic profile, known as one of the most prestigious schools in Germany. Founded by the Evangelical Church in West Berlin in 1949 as the Evangelisches Gymnasium, it continues the traditions of the ancient Berlinisches Gymnasium zum Grauen Kloster, the oldest Gymnasium in Berlin, which for hundreds of years was situated in former monastery buildings in the city's Mitte district, closed by the East Germans in 1958. In 1963 the Evangelisches Gymnasium of West Berlin adopted its traditions and added "zum Grauen Kloster" to its name.