Captain Sir Tom Moore, one of the heroes of the U.K.’s fight against the coronavirus pandemic, has died after contracting the virus. He was 100.

Moore was taken to Bedford Hospital on Sunday with breathing difficulties. He died on Tuesday.

Moore raised close to £33 million ($45 million) for the U.K.’s National Health Service (NHS) by by walking laps around his garden in the run-up to his 100th birthday during the first wave of the pandemic in 2020.

Moore’s original aim was to raise £1000 ($1,272) by walking 100 laps around his garden with the aid of his walker. He also recorded a hit single, “You’ll Never Walk Alone,” that hit No. 1 on the U.K. charts. In the process, he broke two Guinness World Records — for the oldest person to achieve a U.K. No. 1 track, displacing Tom Jones, and also for raising the most money on an individual charity walk. He was knighted by the Queen in a private ceremony at Windsor Castle.

“The Queen is sending a private message of condolence to the family of Captain Sir Tom Moore,” The Royal Family account tweeted. “Her Majesty very much enjoyed meeting Captain Sir Tom and his family at Windsor last year. Her thoughts and those of the Royal Family are with them.”

In a statement, Moore’s daughters Hannah Ingram-Moore and Lucy Teixeira said: “The last year of our father’s life was nothing short of remarkable. He was rejuvenated and experienced things he’d only ever dreamed of.”

“Whilst he’d been in so many hearts for just a short time, he was an incredible father and grandfather, and he will stay alive in our hearts forever.”

Moore’s inspiring story is being made into a fiction feature film that has been fast tracked into production. The U.K.’s Fred Films and Powder Keg Pictures won a bidding war for the life rights to the former British Army captain and World War II hero.

The late captain is also the subject of ITV documentaries “The Life and Times of Captain Sir Tom,” narrated by Hugh Bonneville and “Captain Tom’s War,” narrated by Kenneth Branagh.

Condolences are pouring in.

U.K. Prime Minister Boris Johnson said: “Captain Sir Tom Moore was a hero in the truest sense of the word. In the dark days of the Second World War he fought for freedom and in the face of this country’s deepest post war crisis he united us all, he cheered us all up, and he embodied the triumph of the human spirit.”