One year after his initial cancer diagnosis, the king’s astonishing bravery and determination are not in doubt.

Long overshadowed by his mother, former wife and now his sons and their wives, the top royal is set to greet a Canadian public who may not even be interested.

King Charles III is beginning his first visit to Canada as a monarch. This event is intended to emphasize Canada's sovereignty and is interpreted as sending a significant message to Donald Trump. What do you need to know?