While Princess Diana left a substantial inheritance to her sons, Prince William and Prince Harry, they won’t inherit her childhood home.

Althorp in Northamptonshire has belonged to the Spencer family since 1508, the New York Post reports.

The late Princess of Wales’ father settled at the sprawling estate in 1975 after becoming Earl Spencer.

To date, the lavish home belongs to the current Earl Spencer, Diana’s brother Charles.

And once he dies, his son Louis, Viscount Althorp, will inherit the estate — meaning the Prince of Wales or Duke of Sussex will not be entitled to the 90-room property.

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Prince William and Prince Harry will not be inheriting their late mother Princess Diana’s childhood home. Picture: Getty Images

The Princess of Wales died in a Paris car crash in 1997 at age 36. Picture: Getty Images

Althorp has belonged to the Spencer family since 1508. Picture: Tim Graham Photo Library via Getty Images

Who inherited Princess Diana’s fortune?

Diana left behind many possessions when she died in a Paris car crash in 1997 at age 36.

According to news.com.au, the late royal’s will instructed that the majority of her £21 million ($A40 million) estate go to William and Harry.

The princes received inheritances on their respective 30th birthdays — William reportedly got £10 million ($A19 million) and Harry slightly more, as he had accrued further interest.

Harry also received his mother’s famous wedding dress, while William got her distinct engagement ring, which comprises an 18-carat sapphire surrounded by diamonds that his wife Catherine now wears.

Diana left keepsakes ranging from an antique clock to various watercolour paintings to her 17 godchildren.

She also left her butler and friend Paul Burrell about £50,000 ($A95,000) in cash.

The late royal’s will instructed that the majority of her £21 million estate go to William and Harry. Picture: Getty

Diana left her butler and friend Paul Burrell about £50,000 in cash.

What was Princess Diana’s net worth?

According to reports, Diana’s net worth at the time of her death was estimated to be around £21 million ($A40 million).

Diana received a huge settlement when she and King Charles divorced in 1996.

The New York Times reported she received about £17 million ($A31.5 million) plus an additional £400,000 ($840,200) per year.

Diana was allowed to keep her title “Princess of Wales”, but was required to give up the title of “Her Royal Highness”.

Queen Elizabeth II was reportedly happy for Diana to keep the title, but Charles was rumoured to have insisted on its removal.

1981. The late Princess Diana looking young and lovely as we will always remember her, on her honeymoon with Prince Charles. Diana, was killed 31 Aug 97, she was 36 years old.p/l

Diana received a huge settlement when she and King Charles divorced in 1996

Diana was permitted to retain her apartment at Kensington Palace, which had been the martial home for both her and Charles.

According to the Independent, Diana was permitted to retain her apartment at Kensington Palace, which had been the martial home for both her and Charles.

She was granted exclusive use of Apartments eight and nine, which spanned three floors.

After Diana’s death, her residence was stripped bare and lay vacant for 10 years after her death. It was split back into two apartments.

The units were turned into offices. Apartment 8 was being used by four of Charles’s charities and Apartment 9 housed the office for General Sir David Richards, then Chief of the Defence Staff.

Parts of this story first appeared in the New York Post and was republished with permission.

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