Complex sentence: Nothing, however, could compensate for those financial setbacks; under the guise of health issues, Johanna and Adele Schopenhauer, being no longer able to maintain their lifestyle in Weimar, moved to Bonn.
Split into simpler sentences: Nothing, however, could compensate for those financial setbacks. For reasons of ill health, Johanna and Adele Schopenhauer, being no longer able to maintain their lifestyle in Weimar, moved to Bonn.