London: A four-year-old Australian boy has claimed to be the reincarnation of Britain's Princess Diana. The boy's father, David Campbell is a noted Australian television presenter.

Billy Campbell was born 18 years after Princess Diana’s death in a car crash in 1997.

In a news report, Campbell was quoted as saying, "Billy (aged two at this time) pointed and said, 'Look! It's me when I was a princess'," when he spotted Diana on a card.

However, Campbell further stated that the child would go on to recount details about Diana’s life as a child.

Billy would freak people out and refer to Princes William and Harry as his "sons" and have conversations with freaked-out family members in which he would casually mention his "boys".

Campbell claimed that his son would also talk about Diana's brother John, who died just hours after his birth, a year before Diana was even born.

Another news report stated that the youngster also managed to accurately describe what Balmoral — the Queen’s favourite residence, looked like — without ever having seen it for himself.

“To a Scottish friend of ours, he claimed when he was Princess Diana he used to go to a castle in that kilted wonderland. He described the castle as having ‘unicorns on it’ and was called Balmoral,” Campbell was quoted as saying.

“The unicorn is the national animal of Scotland and there are unicorns on the walls, how does he know this?” a perplexed Campbell wondered.

The boy’s most recent comment is perhaps the most shocking of all though – as he appears to discuss Diana’s passing.

“Lisa showed him another photo of Diana,” adds David. “‘Billy said, ‘There’s me as a princess. Then one day the sirens came and I wasn’t a princess anymore.'”

Princess Diana was married to Prince Charles between 1981 and 1996, they shared two sons. She was killed in a car crash in Paris on August 31, 1997.