Microsoft Co-Founder Paul Allen died at 65 from complications of non-Hodgkin’s lymphoma.

The billionaire was also a great fan of sports,he is the owner of both the Seattle Seahawks and the Portland Trail Blazers, 

Allen’s sister, Jody, released a statement through the company.

“My brother was 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,” his sister said in the statement. She continued: “Paul’s family and friends were blessed to experience his wit, warmth, his generosity and deep concern. 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.”

According to Forbes, Allen was the 44th richest person in the world with a net worth of $20.3 billion dollars.