Inventor Sir Clive Sinclair split his £2.6 million fortune between his five grandkids when he died, snubbing his ex-wife.
Sir Clive Sinclair revolutionised the British electronics industry and created the first pocket calculator and left behind a huge £2,625,215 and a net value of £1,749,445.
He had been battling cancer for more than a decade but was working until the week of his death out of love for what he did.
The creator passed away on September 16 2021 aged 81 and nominated his grandson Samuel Pelham Lloyd as his will's only executor and trustee.
The will - from April 2016 - was made almost exactly a year before he divorced his former Miss England wife who was 36 years his junior when they met at the Soho nightclub Stringfellows.
Both Angie Bowness, who Sinclair married in 2010 when he was 70, and his first wife of 20 years Ann Trevor Briscoe, who he divorced in 1985, are left out of the will and will not see a penny of his money.
Sinclair had three children with Ann - Belinda, Crispin and Bartholomew.
Angie's son with businessman Mark Thornton - Sinclair's stepson - does not appear in the will either.
After his divorce from Ann he formed a reputation as a playboy alongside developing a passion for poker.
The will states: "My Trustees must hold the Trust Fund on trust for my grandchildren who are living at my death and reach the age of 21 years, in equal shares absolutely.
"If, however, a grandchild of mine dies before me, leaving children of his or her own who are living at my death, my Trustees must hold the share of the Trust Fund that they would have held for the grandchild who has died on trust for those children, in equal shares absolutely."
He said that his assets should be sold when appropriate to pay for his debts, his funeral and other expenses and all the gifts in his will.
The trust funds were to be made up of any remaining assets and any added income.
The millionaire left school at 16 and started out as a journalist on Practical Wireless magazine in order to finance his inventions and in 2010 said: "Within two or three years, we made £14 million profit."
Sinclair's ZX Spectrum "Speccy" computers brought affordable computing to the masses, which was later bought by Alan Sugars Amstrad.
The computers were priced at £125 each and more than five million were sold across the globe.
Largely self taught, he began inventing gadgets when he was still at school - inspired by a character called The Inventor on BBC children's show Toytown.
But he was financially drained by inventions like the 1985 electric tricycle Sinclair C5 - which had limited range, was slow and couldn't climb hills.
Up until his death he was working on on designs, believing that a flying car was 'technically entirely possible'.