The UK's Queen Elizabeth has led the union in honoring a hero: Captain Tom Moore, the 100-year-old veteran who raised millions for National Health Service workers in 2020.

Moore died Tuesday.

In a post on social media, @TheRoyalFamily shared a photo of Moore from his dubbing in July.

The caption said the queen enjoyed meeting the captain and his family. His was one physical ceremony the queen undertook in 2020 because of her own isolation.

The queen sent a private message of condolence to the Moore family. Prime Minister Boris Johnson, the archbishop of Canterbury Justin Welby, the British army and the NHS Charities Together as well as several British personalities and organizations posted messages for the hero.

Many said Moore raised the spirits of millions during a devastating period.

Prince William described Moore as "an absolute legend" for raising more than $45 million for the NHS during the first wave of the coronavirus pandemic.

Moore, who had hip surgeries before the pandemic, pledged to walk 100 paces in his backyard to raise $1,400 on his 100th birthday for the front-line workers fighting the health crisis.

He inspired the public, including William and father Prince Charles, to donate even more.

On Sunday Moore's daughter Hannah Ingram Moore posted on Twitter that her father was back at Bedford Hospital for pneumonia. "He has been dealing with the illness at home but then tested positive for COVID-19." She said Moore needed "additional help" to breathe.

Moore qualified to receive a COVID-19 vaccination in the first rollout because he was older than 80 years. But doctors decided to hold off because he was still receiving treatments for pneumonia.

Moore's daughter said her father received the best medical care during his bout with the virus.

In a statement, the family confirmed Moore's death and said that he lived his final year experiencing "things he'd only ever dreamed of."

Apart from his knighthood the veteran received a special 100th birthday billboard greeting at Piccadilly Circus.