In 1725, Peter the Great died at the age of 52 from a bladder disease and suspected cirrhosis. About a month later, his six year old daughter Natalia succumbed to measles. They were interred on the same day at Alexander Nevsky Monastery. In 1731, their bodies were moved to Peter and Paul Cathedral within Peter and Paul Fortress. The former Russian emperor’s white marble sarcophagus topped by a bronze cross is one of the most visited sites in Saint Petersburg.