Allen
Paul Allen/thesun.co.uk

Microsoft Co-Founder Paul Allen died from complications of non-Hodgkin’s lymphoma on Monday afternoon.

Allen’s Vulcan Inc. announced that he died in Seattle at 65 years old.

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Allen, who suffered from non-Hodgkin lymphoma, was also a prominent philanthropist, donating billions to science, conservation and the arts.

Eight years after starting the company he received his first cancer diagnosis, but it was treated successfully, though it forced him to retire early from his role at Microsoft. He developed non-Hodgkin lymphoma in 2009, which had been in remission until it returned earlier this year.

In a statement released at the start of this month, Allen said he planned to fight the disease “aggressively”.

“A lot has happened in medicine since I overcame this disease in 2009. My doctors are optimistic that I will see good results from the latest therapies, as am I,” he said.

On Monday his sister Jody Allen called him a “remarkable individual on every level”.

“While most knew Paul Allen as a technologist and philanthropist, for us he was a much-loved brother and uncle, and an exceptional friend.

“For all the demands on his schedule, there was always time for family and friends.

“At this time of loss and grief for us – and so many others – we are profoundly grateful for the care and concern he demonstrated every day,” she said.

Gates led the tributes from the tech world, remembering Allen as “one of my oldest and dearest friends.”

“Personal computing would not have existed without him,” Gates added.

“He was fond of saying, ‘If it has the potential to do good, then we should do it.’ That’s the kind of person he was.”

Current Microsoft CEO Satya Nadella said his contributions to technology had been “indispensable”.

“As co-founder of Microsoft, in his own quiet and persistent way, he created magical products, experiences and institutions, and in doing so, he changed the world,” he said.