Complex sentence: Brass is the child of an incestuous brother and sister whose lineage stretches back to the French Revolution when a group of forward thinkers dedicated themselves and their children to a doctrine designed to produce the most from human potential.
Split into simpler sentences: Brass is the child of an incestuous brother and sister whose lineage stretches back to the French Revolution. At that time, a group of forward thinkers dedicated themselves and their children to a doctrine designed to produce the most from human potential.