Prince Harry has praised his father Prince Charles for "protecting" his sons after the death of their mother Princess Diana.

Prince Charles and Prince Harry

Prince Charles and Prince Harry

The 68-year-old royal has seen his popularity plummet in recent weeks as the anniversary of the death of his ex-wife Diana - who tragically passed away at the age of 36 when she was involved in a fatal car crash in Paris, France, in 1997 - has brought up clips of the late Princess discussing their strained relationship.

However, their youngest son Prince Harry, 32, has now defended his father by saying "he was there" for both Harry and his brother Prince William at the time of their mother's tragic death.

Speaking in an interview for the upcoming BBC documentary 'Diana, 7 Days', Prince Harry said: "One of the hardest things for a parent to have to do is to tell your children that your other parent has died. How you deal with that, I don't know. But, you know, he was there for us.

"He was the one out of two left and he tried to do his best to make sure that we were protected and looked after. But you know, he was going through the same grieving process as well."

And his comments come after a recent YouGov poll revealed that just 36 per cent of people think Prince Charles has been positive for the Royal Family compared to 60 per cent four years ago, while less than a fifth of people (14 per cent) would want his wife, Camilla, the Duchess of Cornwall, as queen.

Over a third of people (39 per cent) have called for Camilla to be called Princess Consort, instead of Queen Camilla, if Charles becomes king, but 30 per cent don't think she should have any rank at all.

Just over a quarter of people (27 per cent) think Charles has had a negative impact on the monarchy, up 12 per cent from 2013.

'Diana, 7 Days' will air on BBC One at 7:30pm on Sunday (27.08.17)