It was the first time the castle has staged an event to mark a sovereign's official birthday since 1895
Britain's Queen Elizabeth II celebrated her official birthday on Saturday in subdued style, with a scaled-down version of the traditional "Trooping the Colour" ceremony due to the coronavirus pandemic.
The 94-year-old monarch watched a smaller military parade in the grounds of Windsor Castle, where she has been staying during the Covid-19 outbreak, in her first official public appearance since the country's virus lockdown began in late March.
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It was the first time the castle, west of London, has staged an event to mark a sovereign's official birthday since 1895, when a ceremony was held in honour of Queen Victoria.
The parade featured soldiers from the Welsh Guards, who observed government virus guidelines to keep at least two metres apart, in a ceremony dubbed "mini-Trooping".
The annual "Trooping" event, which normally features hundreds of servicemen and women from Britain's most prestigious regiments for a centuries-old spectacle of military pomp and pageantry in front of thousands of spectators, was cancelled because of the health crisis.