context: The history and architecture of the palace reflected both the architectural trends of each of the eras that the palace survived, as well as the personal predilections of the Russian rulers of that time. The palace itself was laid in 1717 under the leadership of the German architect Johann Friedrich Braunstein as the summer residence of Empress Catherine I. In August 1724, as a sign of the completion of construction, a celebration was held in the palace during which "they fired from 13 cannons three times." The Emperor was present at the celebration. According to the first project, the palace was a typical two-story building in the Dutch style, typical for Russian architecture of the beginning of the 18th century, “with 16 lights”. In 1743, Empress Elizaveta Petrovna, who had just ascended to the throne, instructed Russian architects Mikhail Zemtsov and Andrei Vasilyevich Kvasov to expand and equip the palace. It was under Empress Elizaveta Petrovna that the palace acquired its present look and style. In May 1752, she commissioned the architect Bartolomeo Francesco Rastrelli to rebuild the palace again, as it was considered too old-fashioned and small. After dismantling, grandiose reconstruction and construction work, which lasted four years, a modern palace appeared, made in the Russian Baroque style. More than 100 kilograms of gold went to gilding the sophisticated finish of the new facade and numerous statues on the roof. In front of the majestic facade was broken no less majestic "right" park. On July 30, 1756, a 325-meter palace was presented to the shocked Russian nobles and foreign guests.
question: Who was the architect of the Catherine Palace?
answers.text: Bartolomeo Francesco Rastrelli