But what many don't know is that Princess Diana knew about their relationship (which began even before they tied the knot) - and she wasn't silent about it either.
William and Harry were just 15 and 12, respectively, when their mother died on August 31, 1997, at age 36, due to injuries sustained in a vehicle crash in Paris.
People leave tributes outside Kensington Palace on the anniversary of Princess Diana's death.
The Duke of Cambridge (left) and Prince Harry look at tributes to Diana, Princess of Wales attached to the Golden Gates of Kensington Palace, London, ahead of the 20th anniversary of their mother's death.
The pair were accompanied on Wednesday afternoon by Prince William's wife, the Duchess of Cambridge, as they toured what had been known as the Sunken Garden at Kensington Palace in London, to mark two decades on from the death of their mother Diana, Princess of Wales.
Prince Harry was seen laying flowers at a tribute to his mother that had been created by fans at the Kensington Palace gates APTN Prince William looked solemn as he read some of the messages left to his late mother.
Harry, interviewed for an ITV documentary about his mother, said: "There's not a day that William and I don't wish that she was. still around".
Diana's two sons on Wednesday met representatives of the charities she supported in a public garden at Kensington Palace, their home and where their mother lived until she was killed in a vehicle crash in Paris on August 31, 1997.
"She was such a fun, handsome person, and a humanitarian", Tasha says.
Her unusual combination of fragility and steel, her need for loving attention and an ability to make those she met feel loved.
Note that "Forget-me-not" is the translation of "Sentebale" (language sesotho), the name that prince Harry has given to the foundation that he created for underprivileged children of Lesotho, an initiative that reminds us of the love and dedication of her mother to Africa.
Above the flowers, a rain-spattered banner shows pictures of Diana with her sons and the words: "Grandma Diana".
"When you have something so traumatic as the death of your mother when you're 15, it will either make or break you", William said in the "Diana, 7 Days" BBC documentary. The garden has been planted in white and dedicated to the princess at her former home, where she once would stroll by and ask the gardeners about their ever-changing displays.
Fans on Twitter did as fans on Twitter will do and shared their thoughts on Lorde's performance through GIFs. But as lovely as the New Zealand star's looked, it turns out she wasn't feeling almost as well.
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Some people I know in Texas made a pinhole camera so they could watch the eclipse through it, and set the grass on fire. She wanted to hear NASA's expert commentary on the event and also see the images from different parts of the country.
Police said Monday that investigators exhuming and analyzing more bodies had since found evidence of scores of additional murders. His confession led the police to launch Kardio- a special forensic investigation to determine the cause of death of the patients.
According to the CDC, all turtles, regardless of size, can carry salmonella bacteria even if they look healthy and clean. We reported in 2015 about a Pediatrics journal account of eight outbreaks across 41 states, covering 473 illnesses.
Trump said in a speech in Arizona last week that if Congress doesn't include money for the wall, he'll shut down the government . And amid all these these potentially contentious budget conversations is Trump's push for a wall between the US and Mexico.
Didn't storm off from 'The Kapil Sharma Show': Ajay Devgn
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