The Queen is arguably one of the most famous people in the world, but even Her Majesty can go unrecognised.
As the UK marks the 70-year reign of the Queen, a conversation between the monarch and two tourists has emerged, offering a look at her personality behind the scenes.
The unlikely meeting between the now 96-year-old monarch and two American hikers on the grounds of Balmoral Castle in Aberdeenshire made for a funny tale.
Former protection officer Richard Griffin shared what happened on Sky News during their Platinum Jubilee coverage.
At the time, she was dressed down in tweeds and wearing a headscarf - so the duo didn't recognise her, the Mirror reported.
Richard said: "There were two hikers coming towards us and the Queen would always stop and say hello.
"It was two Americans on a walking holiday and it was clear they hadn't recognised her, which was fine.
"The American man asked her if she lived in the area, to which she replied that she did indeed have a house nearby.
"She said that she lived in London but had a house just over the hill, and he asked how often she had been coming up here."
He continued: "She said she'd been coming up for more than 80 years and you could see the cogs were ticking. He said: 'Well if you've been coming up here for 80 years, you must have met the Queen?'
"As quick as a flash, she said 'Well, I haven't but Dick here meets her regularly.' So the guy asked me what she was like.
"And because I was with her a long time, I could pull her leg, so I said she could be very cantankerous at times, but she's got a lovely sense of humour.
"Anyway the next thing I knew, this guy comes round, puts his arm around my shoulder, and before I could see what is happening, he gives his camera to the Queen and asks her to take a photo of us."
Richard concluded the anecdote, saying: "Anyway, we swapped places, I took a photo of them with the Queen, we never let on and we waved goodbye.
"Then Her Majesty said to me that she'd love to be a fly on the wall when he shows these photos to his American friends and hopefully someone tells him who I am."
The story went viral, with one fan writing: "On a weekend of Queen anecdotes, this won't be matched. Just lovely."
Another said: "Wouldn't it be great if they tracked these hikers down and had them meet the Queen again."
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