Ernest II of Saxe-Gotha

Ernest II became a Freemason and later served as Grand Master of the Grand Lodge of Hamburg. His involvement promoted Enlightenment ideals of reason, tolerance, and philanthropy within his duchy and beyond.

Ernest II introduced reforms in agriculture, education, and administration based on Enlightenment principles. He abolished torture, promoted religious tolerance, and improved the legal system, earning a reputation as an enlightened despot.

Ernest II established an astronomical observatory at Seeberg near Gotha, equipped with modern instruments. He personally conducted observations and calculations, contributing to the field of astronomy and making Gotha a center for scientific research.

Ernest II published his astronomical observations and calculations in scientific journals. His work on star positions and planetary orbits was recognized by contemporary astronomers, contributing to the advancement of celestial mechanics.