From his notorious "slitty-eyed" remark to a more recent dropping of the f-bomb, the Duke of Edinburgh is without doubt the royal family's most controversial character.
There are many to choose from, but here are a selection of just some of Philip's gaffes over the years:
1. On a visit to Canada in 1969
"I declare this thing open, whatever it is."
2. Shouted from the deck of Britannia in Belize in 1994 to the Queen who was chatting to her hosts on the quayside
"Yak, yak, yak; come on get a move on."
3. Pointing at an old-fashioned fusebox in a factory near Edinburgh in 1999
"It looks as if it was put in by an Indian."
4. To young deaf people in Cardiff, in 1999, referring to a school's steel band
"Deaf? If you are near there, no wonder you are deaf."
5. In Kenya, 1984, after accepting a small gift from a local woman
"You are a woman, aren't you?"
6. To British students in China, during the 1986 state visit
"If you stay here much longer, you'll all be slitty-eyed."
7. To a 13-year-old who told Philip he wanted to go into space during a visit to Salford in 2001
"You're too fat to be an astronaut."
8. In Australia, in 2002 talking to a successful aborigine entrepreneur
"Do you chaps still chuck spears at each other?"
9. To a young female officer wearing a bullet-proof vest on Stornoway, Isle of Lewis, in 2002
"You look like a suicide bomber."
10. To a blind woman outside Exeter Cathedral, 2002
"Do you know they're now producing eating dogs for anorexics?"
11. After looking at the name badge of businessman Atul Patel at a Palace reception for British Indians in October 2009
"There's a lot of your family in tonight."
12. To 24-year-old Barnstaple Sea Cadet Elizabeth Rendle when she told him she also worked in a nightclub in March 2010
"Do you work at a strip club?"
13. Pointing to some tartan (to then Scottish Conservative leader Annabel Goldie at a papal reception in Edinburgh in September 2010)
"Do you have a pair of knickers made out of this?"
14. To 25-year-old council worker Hannah Jackson, who was wearing a dress with a zip running the length of its front, on a Jubilee visit to Bromley, Kent, in May 2012
"I would get arrested if I unzipped that dress."
15. Losing patience with an RAF photographer at events to mark the 75th anniversary of the Battle of Britain in July 2015
"Just take the f***ing picture."