The Duke of Edinburgh has now ceased official duties.
Prince farewelled with cheers from soldiers and crowd.
Announcement ends speculation over Queen's role
So what actually happens if a royal dies?
PRINCE Philip will step down from royal duties
HE'S the Royal best known for his bizarre statements.
'You could safely assume the Queen and Prince Philip are not dead.'
Official news from palace could be hours away
Buckingham Palace staff called to emergency meeting.
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Duke of Edinburgh facing exploratory operation on his abdomen
Doctors worried about Prince Philip's decreasing health