Paul Allen, who founded Microsoft alongside Bill Gates in 1975, has died at the age of 65.

Mr 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, Mr 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.