George Martin helped The Beatles achieve global success, producing their early 1960s pop recordings and later on their classic albums Revolver and Sgt Pepper's Lonely Hearts Club Band.
His will has specified that an amount small enough to avoid UK inheritance tax be shared between seven people, including his daughter Alexis - from his first marriage to Jean "Sheena" Chisholm, and three of his grandchildren. His oldest son Greg is not mentioned.
The rest of his estate has been left to his second wife Judy and t he document states that if she had died before Sir George, her bequest would have gone to their children Lucie and Giles "in equal shares absolutely".
Giles Martin is the musical director of the long-running, Beatles-based Cirque Du Soleil show LOVE in Las Vegas, which grosses millions of dollars a year.
The will is one of 41 million stored and digitised by Iron Mountain on behalf of HM Courts & Tribunals Service.
At the time of Sir George's death, Paul described him as a "true gentleman and like a second father to me", while Ringo praised the producer's "love and kindness" to the Fab Four through the years.
"If anyone earned the title of the Fifth Beatle it was George," Paul said.