What Per Mare, Per Terram means as Prince Harry signs off Duke of Edinburgh tribute in latin

Prince Harry, Duke of Sussex, has paid a beautiful and humorous tribute to his grandfather, the Duke of Edinburgh.

In a touching message, Harry paid tribute to "master of the barbecue" Prince Philip, who died on April 9 aged 99.

Harry signed off his message with "Per Mare, Per Terram", a Royal Navy motto meaning "By sea, by land" in latin.

Harry's tribute - signed off him, wife Meghan Markle and son baby Archie, came as Boris Johnson said many people believe the Duke of Edinburgh had "touched their lives" in some way.

He told the Commons: "He had other novel ideas that touched the lives of millions, developed their character and confidence, their teamwork and self-reliance.

"It was amazing and instructive to listen on Friday to the Cabinet's tributes to the Duke and to hear how many of them were proud to say that they or their children had benefited from taking part in his Duke of Edinburgh's Award schemes.

"I will leave it to the House to speculate as to who claimed to have got a gold award and who got a bronze - but I believe those ministers spoke for millions around the world, across this country, who felt that the duke had in some way touched their lives.

"People whose work he supported in the course of an astonishing 22,219 public engagements, people he encouraged and people, yes, that he amused."

Monday April 12 also saw William, Duke of Cambridge, release a poignant and touching tribute to his grandfather.