WATCH: Diana’s brother stands by bombshell ‘forget her’ claim about King Charles

Princess Diana’s brother, Charles Spencer, has stood by his bombshell claim that King Charles told him “we’ll forget her soon enough” after her death.

The remark forms part of Spencer’s forthcoming memoir, ‘Swan Song: Diana, My Sister,’ set for release on Tuesday.

Speaking to the BBC’s Laura Kuenssberg, Spencer said then-Prince Charles sounded “giddily elated” in the immediate aftermath of Diana’s 1997 death, suggesting he may have felt freer to remarry.

“I felt, as I say in the book actually, I felt there was a sort of giddy tone,” he said.

“I’d had a lot of calls that day from people who cared, who were stunned, like we all were. And I just felt there was a lightness in his tone about Diana’s death that really jarred with me.”

Buckingham Palace did not respond to his latest comments but had earlier said in response to the book’s allegations, “His Majesty is mindful that the pain of fraternal grief can cloud reason, affect judgement and colour memory in ways others do not recognise, even many years after such a loss”.

Princess Diana died aged 36 in a 1997 Paris car crash while pursued by paparazzi, sparking global mourning and scrutiny over aggressive media coverage.

Spencer also called for Prince Harry and Meghan to be given official security, arguing they’re now treated by the media in a similar way to how Diana was in the years before her death.

“I am not here to speak for Harry and Meghan, but for anyone who is being destroyed in this way, daily, it must such a cancerous influence in their life. I saw it with Diana,” he said.

“And yeah, I suppose it’s a pity when I see echoes of that now.”