The Duke of Cambridge was at his wife’s side for several hours on December 3, 2012, the day the duchess was admitted to King Edward VII Hospital in London suffering from hyperemesis gravidarum, which is severe morning sickness, resulting from pregnancy. Because Catherine was rushed to the hospital, it was decided that news of the duchess’s pregnancy needed to be announced. On December 4, William again visited his wife, and her parents, Michael and Carol Middleton, are said to be planning to do so as well. The photos of the King Edward VII Hospital, below, were taken in June 2012, when the Duke of Edinburgh, had been admitted there for several days. The duchess is expected to stay in the hospital as well for several days. Photos by Bauer Griffin and Getty Images.