Throughout official events and family occasions, Queen Elizabeth and Prince Philip have seemed to enjoy a blissful and meaningful marriage. Though they rarely discuss their relationship with the press, the Queen did say of her husband in 2012: "Prince Philip is, I believe, well known for declining compliments of any kind. But throughout [my reign] he has been a constant strength and guide." Then Princess Elizabeth, the future monarch and Prince Philip married at Westminster Abbey on November 20, 1947. Here the royal newlyweds are pictured in their official photo, taken at Buckingham Palace.Photo: Getty Images
Princess Elizabeth and Philip go for a romantic stroll during their honeymoon at Broadlands, Romsey, Hampshire in 1947.Photo: Getty Images
The couple gaze adoringly at each other as they attend the Royal Horse Show at Windsor in 1949.Photo: Getty Images
The Duke of Edinburgh cuts a rug with his wife at a square dance held in their honor in Ottawa, Canada on Oct. 17, 1951.Photo: Getty Images
Queen Elizabeth II is seen on the balcony of Buckingham Palace after her Coronation ceremony in 1952 with (left to right); Prince Charles, Princess Anne and her beloved husband, Prince Philip, watching on.Photo: Getty Images
Prince Philip whispers to his wife as traditional Susu dancers entertain them during an official visit to Port Loko, Sierra Leone in 1964.Photo: Getty Images
The royal pair are pictured beaming as they arrive at the Manoel Theatre in Valleta, Malta in 1967.Photo: Getty Images
Queen Elizabeth II and Prince Philip dance at a state ball during a Commonwealth Visit to Malta in 1967.Photo: Getty Images
The Duke of Edinburgh is seated on the roof of a Land Rover, pointing out competitors to his wife, who is watching through binoculars, at the 1968 Badminton Horse Trials.Photo: Getty Images
Queen Elizabeth and Prince Philip attend a State banquet in 1970.Photo: Getty Images
The Queen and Prince Philip stop for a chat while riding horseback in Windsor Great Park in 1971.Photo: Getty Images
Queen Elizabeth II and Philip are pictured with their children (left to right): Charles, Prince of Wales, Prince Edward, Prince Andrew and Princess Anne, celebrating their silver wedding anniversary at Buckingham Palace in 1972.Photo: Getty Images
In 1972, Queen Elizabeth II and Prince Philip pay a visit to a greenhouse at the Balmoral estate in Scotland.Photo: Getty Images
Queen Elizabeth ll encourages her husband as he takes part in a carriage driving competition at the Windsor Horse Show in May 1974.
Queen Elizabeth II and Prince Philip admire a silver bell on the occasion of Her Majesty's Silver Jubilee in 1977.Photo: Getty Images
Queen Elizabeth II steals a glance at Prince Philip at a garter ceremony at Windsor Castle in the early 1980s.Photo: Getty Images
The royal couple are spotted laughing together on a visit to Tuvalu in the South Pacific in 1982.
The Queen and Prince Philip are seen chatting together during the 1982 The Royal Windsor Horse Show.
The Queen and her husband pose for their 40th wedding anniversary portrait in 1987.
Queen Elizabeth ll and Prince Philip chat during the Gulf Parade in London in June 1991.Photo: Getty Images
To usher in the new millennium, Prince Philip plants a kiss on his wife during the New Year’s Eve celebration at the Millennium Dome in 1999.Photo: Getty Images
Queen Elizabeth ll gets a fit of the giggles as she walks past her husband, Prince Philip, Duke of Edinburgh, who is standing to attention in his uniform and bearskin hat at Buckingham Palace in 2003.Photo: Getty Images
Queen Elizabeth ll and Prince Philip hold hands at the State Opening of Parliament on November 15, 2006 in London.Photo: Getty Images
The Duke of Edinburgh escorts his wife for a walk at their honeymoon spot Broadlands in 2007 as they celebrated their 60th wedding anniversary.Photo: Getty Images
Queen Elizabeth II and Prince Philip attend the launch of the Queen's Baton Relay at Buckingham Palace on Oct. 9, 2013.Photo: Getty Images
In 2015, the royal couple shared a blanket at the Braemar Gathering at The Princess Royal and Duke of Fife Memorial Park in Scotland.Photo: Max Mumby/Indigo/Getty Images
In Malta in November 2015, Prince Philip gallantly helps the Queen step down from a platform as she prepares to inspect a Guard of Honor at Luqa airport.
The lifelong loves posed together for the Queen's 90th birthday portrait, snapped by Annie Leibovitz at Windsor Castle, in 2016.Photo: Annie Leibovitz/Buckingham Palace via Getty Images
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