Complex sentence: Auerbach was already in 1914 a patron of the Jena art scene, numerous artists such as Erich Kuithan, Clara Harnack (the widow of Otto Harnack), Reinhard Sorge, Eberhard Grisebach and Botho Graef, the sponsor of Ernst Ludwig Kirchner, frequented his house.
Split into simpler sentences: Auerbach was already in 1914 a patron of the Jena art scene. Numerous artists such as Erich Kuithan, Clara Harnack (the widow of Otto Harnack), Reinhard Sorge, Eberhard Grisebach and Botho Graef, the sponsor of Ernst Ludwig Kirchner, frequented his house.