Prince Phillip's latest gaffes - effing and jeffing at a photographer and asking a group of community workers "who do you sponge off?" - are just the latest in a long list of controversial moments for the Queen's husband.
Here is a selection of some of the most ill-advised comments to have left his mouth over the years:
• In the aftermath of the Dunblane school massacre in 1996, where 18 people were killed, Prince Phillip questioned the need for a firearms ban: "If a cricketer, for instance, suddenly decided to go into a school and batter a lot of people to death with a cricket bat, which he could do very easily, I mean, are you going to ban cricket bats?"
• "You look like you're ready for bed!" he once cringe-inducingly commented to the President of Nigeria, who was dressed in traditional robes.