Why is King Charles in Canada, and what is the throne speech? On Tuesday, he delivered the Speech from the Throne to open the 45th session of Canada's parliament in Ottawa . When was the last time Canada's head of state read the throne speech? King Charles's grandfather George VI granted royal assent to several bills when he visited Canada in 1939, but he never delivered a throne speech. Shortly after, the King delivered his Speech from the Throne to open the 45th session of parliament.