Prince Charles looked perplexed when a bystander shouted "congratulations" to him during a visit to York Minster.
Charles appeared to say "Who? Me?" before chuckling as the woman explained the greetings were for the "imminent arrival".
As the Prince walked over to her, he joked, "Do you know something I don't?"
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A total of 21 are also injured by a blaze which ripped through the upmarket 22-storey hotel on the Black Sea coast.