There's no "off-duty" in royal life, and so it falls to the world's kings, queens, princes, princesses-plus an empress or two-to quickly learn how to pair a tiara with bespoke McQueen. From galas to charity functions or even a weekend walk in Kensington Gardens with a certain floppy-eared cocker spaniel, these 10 royals always pull off debonair-any time of day or night.
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