St Sampson's Cathedral is one of the oldest cathedrals in St Petersburg. The original wooden version of the cathedral was built in 1710 in honour of St Sampson the Hospitable as on St Sampson's feast day in 1709, Peter the Great defeated King Charles XII of Sweden at the Battle of Poltava. This was replaced in 1740 by the current version which was designed by Pietro Antonio Trezzini. There is a belief that Catherine the Great secretly married Grigory Potyomkin here in 1774.  The cathedral was closed by the Bolsheviks in the 1930s. It was restored in the 1970s and in 2000 it became a branch of the St Isaac's Cathedral State Museum (Museum of Four Cathedrals). Just outside the cathedral is a statue of Peter the Great and behind the cathedral are the Sampsonievsky Gardens.