Complex sentence: Emilie Flöge was a fascinating member of the Viennese bohemian (Bohemianism) and Fin de siècle circles and the life companion of the painter Gustav Klimt.
Split into simpler sentences: Emilie Flöge was a fascinating member of the Viennese bohemian (Bohemianism) and Fin de siècle circles. She was the life companion of the painter Gustav Klimt.