Catherine Palace is a palace located southeast of St. Petersburg, Russia. The main style present in the palace is the Rococo style. The palace started when Catherine I of Russia asked the German architect, Johann Friedrich Braunstein, to design a residence for herself in 1717. The palace was expanded in 1733. In 1752, Catherine I of Russia decided she was unhappy with the residence and told the architect, Bartolomeo Rastrelli, to tear it down and redesign a larger one. Over 100 kilograms of gold were used in the construction of the new palace.