Captain Sir Tom Moore was knighted during the Queen’s first official engagement in person since the lock-up.
The centennial investiture, which raised more than £ 32 million for NHS charities, was held at a “unique ceremony” at Windsor Castle.
He has been known to have walked more than 100 tours of his garden in Marston Moretaine, Bedfordshire.
Capt Sir Tom, from Keighley, West Yorkshire, said it was “the most special day for me.”
The Queen personally congratulated Capt Sir Tom, saying, “Thank you very much, an incredible amount that you have raised. ”
In May, Prime Minister Boris Johnson made a special appointment to have the veteran knighted.
Buckingham Palace believes that this is the first time that the ceremony has been held in the strictly socially distanced format.
The Queen used the sword that belonged to her father, George VI, to bestow the badge of single knight on Captain Sir Tom.
His arrival was announced by the sound of bagpipes played by the Queen’s Piper, Pipe Major Richard Grisdale, of the Royal Regiment of Scotland.
Earlier, Her Majesty, the Duke of Edinburgh and another close family attended the unexpected marriage of their granddaughter, Princess Beatrice, to Edoardo Mapelli Mozzi in a nearby chapel.
Other royal investments were suspended during the pandemic, those which should take place at Buckingham Palace and at the Palace of Holyroodhouse in Edinburgh in June and July are postponed.
Capt Sir Tom’s daughter Hannah Ingram-Moore said, “It’s just the most sensational day, of all the things Tom was honored with, it’s really the icing on the cake. ”
Capt Sir Tom, who received the honorary title of colonel on his 100th birthday, originally decided to raise £ 1,000 for NHS charities by traversing towers in an 82-foot (25 m) loop of his garden.
But he eventually raised £ 32,794,701 from more than a million and a half supporters.