Michael Pavlovich died in 1849 leaving no heir, and thus Pavlovsk became property of a son of Nicholas I, Grand Duke Konstantin Nikolayevich of Russia. Konstantin Nikolayevich established in 1872 an art gallery and a museum in the palace and opened them for public access. He also promoted construction in 1876 of a laboratory dedicated to meteorology and study of magnetic fields on the outskirts of the park. Pavlovsk became a popular residence and by 1874 had 323 summer cottages. The celebrities living here included Alexander Brullov, Peter Clodt von Jürgensburg and Vladimir Sollogub.