Complex sentence: The Royal Copenhagen manufactory, whose 1775 operations began in a converted post office, was founded by chemist, Frantz Heinrich Müller, who was given a 50-year monopoly to create porcelain.
Split into simpler sentences: The Royal Copenhagen manufactory operations began in a converted post office in 1775. It was founded by a chemist, Frantz Heinrich Müller, who was given a 50-year monopoly to create porcelain.