Complex sentence: Attracted by the in Peking living Prussian philosopher and art scholar Dr. Alfred Westharp he moved 1915 to Peking and took there the Name (for "Leach"), but returned the following year to Japan.
Split into simpler sentences: Attracted by the Prussian philosopher and art scholar Dr. Alfred Westharp, who at the time was living in Peking, Leach moved to Peking in 1915. There he took on the Name (for "Leach"), but returned the following year to Japan.