Social media quickly debated the move: some questioned a consort bowing to another sovereign while others stressed that styles and traditions differ between monarchies. Monaco’s princely couple use the style Her/His Serene Highness, whereas the Spanish royals are Their Majesties — a distinction that has fans parsing etiquette. Commenters also pointed to prior respectful gestures by other royals and noted there is no single, mandatory protocol followed everywhere.
The former Olympic swimmer, born in Rhodesia, became Princess of Monaco after marrying Prince Albert in July 2011 and has spoken about how she had to learn the ropes of royal life without a guidebook.