Final answer:
Francesco Bartolomeo Rastrelli was a renowned 18th-century architect who created significant Baroque structures in Russia, including the Winter Palace and Catherine Palace.
Step-by-step explanation:
Francesco Bartolomeo Rastrelli was a prominent architect in Russia during the period of the Baroque. He was born in 1700 in Paris and later served under the Russian emperors, particularly under the reign of Empress Elizabeth. Among his most famed works are the Winter Palace in Saint Petersburg, which is now part of the Hermitage Museum, and the Catherine Palace in Tsarskoye Selo. Rastrelli was known for his grandiose style which blended traditional Russian architecture with Baroque elements, creating structures of grandeur and opulence.
Rastrelli is best known for his work on the Winter Palace in St. Petersburg, which is now part of the Hermitage Museum.