Pavlovsk Palace - Wikipedia
Pavlovsk Palace (Russian: Павловский дворец) is an 18th-century Russian Imperial residence built by Catherine the Great for her son, Grand Duke Paul, in Pavlovsk, within Saint Petersburg. After his death, it became the home of his widow, Maria Feodorovna. The palace and the large English garden surrounding it are now a Russian state museum and public park.
via : en.wikipedia.org