Complex sentence: Niether Valentine nor Paracelsus mention the other though they share exactly the same perspective on Alchemical and Spagyric philosophy, although they both lived in the same time frame, were native to Germany and shared the same religious preference (Christianity).
Split into simpler sentences: Niether Valentine nor Paracelsus mentioned the other even though they shared exactly the same perspective on Alchemical and Spagyric philosophy. Both alchemists lived in roughly the same time frame, were native to Germany and shared the same religious preference (Christianity).