Prince Harry thinks Princess Diana "was the best mum in the world".
The 32-year-old royal has heaped praise on his mother, who died in a car accident in Paris, France, in August 1997, saying she "smothered" him and his brother Prince William with love.
Speaking in the trailer for a new ITV documentary called ‘Diana, Our Mother: Her Life and Legacy’, Prince Harry shared: "This is the first time that the two of us have ever spoken about her as a mother. She was our mum. She still is our mum.
"And of course, as a son I would say this, she was the best mum in the world. She smothered us with love, that’s for sure."
The flame-haired royal subsequently added: "She was one of the naughtiest parents."
The remarks come shortly after Prince Harry revealed he suffered anxiety following the death of his mother.
The Prince explained that his heart was beating hard like a "washing machine" and he would be dripping in sweat when he was in a room filled with "loads of people" following Princess Diana’s death.
Speaking about the panic attacks he endured when he was younger, he shared: "In my case, suit and tie, every single time I was in any room with loads of people, which is quite often, I was just pouring with sweat, like heart beating – boom, boom, boom, boom – and literally just like a washing machine."
Harry admitted, too, that when he would start to feel unsettled, he would desperately want to run out of the room.
Recalling his mindset, Prince Harry said: "I was like, ‘Oh my God, get me out of here now. Oh, hang on, I can’t get out of here, I have got to just hide it.’"