Following his initial trip to France, Carney will proceed to the UK to discuss matters with Prime Minister Keir Starmer. He will also have an audience with King Charles III, who serves as Canada’s monarch.
Source: https://www.euronews.com/my-europe/2025/03/17/canadas-new-pm-carney-goes-to-paris-and-london-to-shore-up-support-among-european-allies