Charles, Canada's head of state, is the first British monarch in almost 70 years to preside over the opening of the Canadian parliament.
In a speech in the Senate, Charles referred to "the country that Canadians and I love so much". Still, he did not mention Trump, who has imposed tariffs on Canadian exports and has mused about turning Canada into the 51st U.S. state.
"The True North is indeed strong and free," Charles said, referring to Canada's national anthem.
The speech outlining the government's plans was largely written by officials working for Prime Minister Mark Carney. But Charles was responsible for the comments about Canada.
"Every time I come to Canada ... a little more of Canada seeps into my bloodstream – and from there straight to my heart," said the monarch, accompanied by his wife, Queen Camilla.
"Canada has continued to set an example to the world in her conduct and values, as a force for good."
The 76-year-old king, who is undergoing cancer treatment, later left Canada after a visit that barely lasted 24 hours.
Charles, who joked and laughed with Carney before the speech, wore the Order of Canada around his neck.
He and Camilla were driven to the Senate in a horse-drawn carriage, escorted by 28 riders from the Royal Canadian Mounted Police and cheered on by flag-waving onlookers.
With AAP.
