Saskatoon has welcomed members of the Royal Family since 1919. The Queen most recently visited for a gala concert at Credit Union Centre, before a live audience of 12,000 and television viewers nationwide in 2005. The Queen was presented with the key to the city on the same visit, after touring the Canadian Light Source synchrotron and greeting thousands of well-wishers on a walkabout at the University of Saskatchewan (the Queen traditionally stays at the on-campus residence of the President of the University of Saskatchewan when she visits the city). Sovereigns and consorts who have visited include Edward VIII as Prince of Wales in 1919, King George VI and Queen Elizabeth in 1939, and Elizabeth II and the Duke of Edinburgh, as Princess Elizabeth in 1951 and afterwards as Queen in 1959, 1978, 1987 and 2005.