Mathematicians celebrating Siegel's Ph.D. graduation, June 1920 at Göttingen: Grandjot, Bessel-Hagen, Rogosinski, Ness, Windau, Siegel (in the trolley), Walfisz, Krull, Emersleben, Kopfermann, Hedwig Wolff, Boskowits, Kneser.
The Coimbra Group (CG) is an international association of 40 universities in Europe. It was established in 1985. It works for the benefit of its members by promoting "internationalization, academic collaboration, excellence in learning and research, and service to society" through "creating special academic and cultural ties", by lobbying at the European level, and by developing best-practice.
The group takes its name from the city of Coimbra, Portugal and the university located there.