Complex sentence: With typical Byzantine ingenuity, she had many rooms in her chambers converted into laboratories for the preparation of arcane ointments, and she was able to keep her face free of wrinkles till she was 60.
Split into simpler sentences: With typical Byzantine ingenuity, she had many rooms in her chambers converted into laboratories for the preparation of arcane ointments. Thus, she was able to keep her face free of wrinkles till she was 60.