Douglas Chambers, from Glasgow, was one of five people who became unwell with Covid-19 symptoms after attending the bash for his daughter Wendy Russell.
Ms Russell also fell ill three days after the party with a fever, aches and a shortness of breath that made it feel like she was drowning.
When Mr Chambers developed the same symptoms, he "knew what it meant", but he was determined to beat the disease and get out of the hospital.
Mr Chambers, who had asthma and a heart condition, spent just over two weeks in hospital before his family was forced to turn off his life support on March 26.
His family made recordings of their voices and a playlist of his favourite Rolling Stones songs for hospital staff to play on a loop as he lay unconscious in an intensive care unit.
Ms Russell told the Rutherglen Reformer: "After he found out he had it, he was in tears, so upset.
Doctors told them there was nothing else they could do to save him.
Coronavirus wasn't even a topic of discussion at the birthday party, said Ms Russell."He knew himself what it meant. He was heartbroken when he phoned me up to let me know."
Ms Russell and the other three party guests recovered.
They believe they contracted the virus at the party on March 7, just over two weeks before the UK's lockdown began.
