In a statement to the BBC, his family said, "We are deeply saddened to have to announce the passing of beloved husband and father, Terry Jones. Terry passed away on the evening of 21 January 2020 at the age of 77 with his wife Anna Soderstrom by his side after a long, extremely brave but always good humoured battle with a rare form of dementia, FTD."
"Over the past few days his wife, children, extended family and many close friends have been constantly with Terry as he gently slipped away at his home in north London. We have all lost a kind, funny, warm, creative and truly loving man whose uncompromising individuality, relentless intellect and extraordinary humour has given pleasure to countless millions across six decades," the statement continued. "His work with Monty Python, his books, films, television programmes, poems and other work will live on forever, a fitting legacy to a true polymath."
Jones was known for his work on the sketch comedy series Monty Python's Flying Circus, both on screen and behind the scenes as a writer for dozens of episodes. He also co-wrote and directed Monty Python's Life of Brianand co-wrote and co-directed Monty Python's The Meaning of Life and Monty Python and the Holy Grail with Terry Gilliam, in addition to starring in those films. The Meaning of Life won the Grand Jury Prize at the 1983 Cannes Film Festival, and Jones was co-nominated for a BAFTA for the feature's original song "Every Sperm Is Sacred" in 1984. In 2004, he was nominated for a Primetime Emmy Award for his writing on Medieval Lives, a documentary about the Middle Ages.