Question: Friedrich Klose (1862–1942) was a German composer, his opera "Ilsebill" (1903) is inspired by the music of Richard Wagner and which leading German composer of the late Romantic and early modern eras? 
Sentence (from "George Brütsin IV"): Along with Richard Strauss, Anton Bruckner, and Gustav Mahler, he represented the flowering period of late romanticism of Richard Wagner.
Relevant evidence: No