15 candid photos of Queen Elizabeth and Prince Philip that show the joy they shared together

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.

Prince Charles was born in 1948, followed by Princess Anne in 1950.

They went on a tour of the Persian Gulf in 1979.

The Queen was traveling from Ottawa, Canada, back to London after a four-day royal tour.

They rang in the new year at the Millennium Dome in London.

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."

President Alexandre Kwasniewski and his wife, Jolanta, came to the UK on an official state visit in 2004.

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." 

Queen Elizabeth and Prince Philip escorted Irish President Michael D. Higgins and his wife, Sabina, out of Windsor Castle after their visit.

They watched a sack race at the annual gathering.

They visited Germany for four days in 2015 in their first state visit since 2004.

Prince Philip and Queen Elizabeth visited the lion enclosure at the London Zoo in 2016.

"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 couple was attending the Royal Windsor Horse Show in 2018.

The royal couple enjoyed each other's company at the Guards Polo Club in Egham, England.