He and Queen Elizabeth were married for 73 years and shared many sweet moments together.
Candid photos show them laughing, chatting, and acting like any other couple.
Queen Elizabeth and Prince Philip went square dancing in Canada in 1951.Queen Elizabeth and Prince Philip in 1951.
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The event was held in their honor in Ottawa, Canada, during their tour in 1951, four years after they were married.
They dressed for the occasion, with Prince Philip in jeans and a checkered shirt and Queen Elizabeth in a plaid shirt with a flowered skirt.
Princess Anne grabbed her father's chin as the young family posed for photos in 1951.Prince Charles and Queen Elizabeth with Prince Charles and Princess Anne in 1951.
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Prince Charles was born in 1948, followed by Princess Anne in 1950.
Queen Elizabeth grinned as she leaned in to chat with Prince Philip on a visit to Abu Dhabi in 1979.Queen Elizabeth and Prince Philip in 1979.
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They went on a tour of the Persian Gulf in 1979.
In a rare public display of affection, Prince Philip kissed Queen Elizabeth on the cheek as she boarded a plane in 1982.In Ottawa, Prince Philip kisses Queen Elizabeth before she boards a plane for London in 1982.
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The Queen was traveling from Ottawa, Canada, back to London after a four-day royal tour.
He also kissed Queen Elizabeth on the cheek on New Year's Eve in 2000.Queen Elizabeth and Prince Philip in 2000.
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They rang in the new year at the Millennium Dome in London.
Queen Elizabeth was photographed giggling with Prince Philip when a swarm of bees interrupted an event at Windsor Castle in 2003.Queen Elizabeth giggles with Prince Philip at a 2003 event at Windsor Castle.
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Photographer Chris Young, who was working for the Press Association at the time, documented the scene as guests ran for cover and a royal beekeeper came to return the bees to their hive. Young then turned his camera on Queen Elizabeth and Prince Philip to capture their reaction.
"I got lucky," Young told the BBC 18 years later. "I recognized that it was a human moment. She was giggling like a little girl and he was laughing too. I thought the reaction from both of them was pretty unique."
They shared a laugh as the Polish president and first lady left Buckingham Palace in 2004.Queen Elizabeth and Prince Philip in 2004.
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President Alexandre Kwasniewski and his wife, Jolanta, came to the UK on an official state visit in 2004.
Royal photographer Chris Jackson captured a casual shot of the couple laughing at the Braemar Highland Gathering in Scotland in 2006.Royal photographer Chris Jackson's favorite picture of Queen Elizabeth and Prince Philip shows them sharing a laugh in 2006.
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They were joined by Prince Charles and Camilla, Duchess of Cornwall.
"Hands-down still my favourite picture of HM The Queen, The Duke of Edinburgh and The Prince of Wales at an event they clearly enjoy and were so relaxed at, The Braemar Highland Gathering," Jackson wrote on Instagram. "This spectacular and friendly event takes place just down the road from The Queen's summer residence of Balmoral."
They were all smiles at Windsor Castle in 2014.Queen Elizabeth and Prince Philip in 2014.
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Queen Elizabeth and Prince Philip escorted Irish President Michael D. Higgins and his wife, Sabina, out of Windsor Castle after their visit.
They shared a blanket at the Braemar Gathering in Scotland in 2015.Queen Elizabeth and Prince Philip in 2015.
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They watched a sack race at the annual gathering.
In a candid moment in Germany in 2015, Prince Philip picked up a bouquet of flowers he'd dropped on the tarmac as Queen Elizabeth looked on.Queen Elizabeth and Prince Philip in 2015.
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They visited Germany for four days in 2015 in their first state visit since 2004.
They visited the zoo together in 2016.Prince Philip and Queen Elizabeth in 2016.
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Prince Philip and Queen Elizabeth visited the lion enclosure at the London Zoo in 2016.
Chris Jackson photographed Queen Elizabeth and Prince Philip making the acquaintance of Donna the elephant while visiting a UK zoo in 2017.Queen Elizabeth and Prince Philip feed Donna the elephant a banana as they visit the Whipsnade Zoo in 2017.
Chris Jackson/Getty Images
"When I got up this particular morning, I knew I was going to photograph the opening of the elephant sanctuary at Whipsnade animal park," Chris Jackson previously told Insider. "But what I didn't realize, and what was quite unexpected, was the Queen would actually feed Donna, the Asian elephant, a banana."
The royals looked like any other couple as Queen Elizabeth talked to Prince Philip through a car window in 2018.Queen Elizabeth and Prince Philip in 2018.
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The couple was attending the Royal Windsor Horse Show in 2018.
The Queen and Philip looked relaxed as they chatted at the Royal Windsor Cup Final in 2018.Queen Elizabeth and Prince Philip in 2018.
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The royal couple enjoyed each other's company at the Guards Polo Club in Egham, England.
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