The Hagen Quartet is made up of three members of one Salzburg family — Lukas, Veronika and Clemens Hagen — and the German violinist Rainer Schmidt, who joined the quartet in autumn 1987, replacing Annette Bik. The three Hagens studied at the Salzburg Mozarteum: Veronika and Lukas were students of Helmut Zehetmair; Clemens's teacher was Wilfried Tachezi. Rainer Schmidt studied in Germany, Canada and the USA, where he attended the Cincinnati Conservatory under the tutelage of Walter Levin and Dorothy DeLay. Hatto Beyerle, Heinrich Schiff and Oleg Maisenberg also played important roles in the artistic development of the musicians. The meeting with Nikolaus Harnoncourt helped to expand their field of musical vision, as did the friendship and artistic relationship with Gidon Kremer, who has regularly involved the ensemble in his chamber‐music projects at the Lockenhaus Chamber Music Festival.