Complex sentence: Richard Niehart (1831-1893) German philosopher and political activist, a minor figure in the early German Existentialist scene in his life time, he faded into obscurity after his death.
Split into simpler sentences: Richard Niehart (1831-1893) was German philosopher and political activist. A minor figure in the early German Existentialist scene in his life time, he faded into obscurity after his death.