On the Queen's 96th birthday, two salutes were fired, the first, at noon, of 41 guns by The King's Troop, Royal Horse Artillery, in Hyde Park, close to Buckingham Palace. An hour later, the Honourable Artillery Company, the City of London's Reserve Army Regiment, fired 62 guns from Tower Wharf, close to Tower Bridge.
The Duke and Duchess of Cambridge tweeted two pictures, one of the couples with Her Majesty at the Chelsea Flower Show a few years ago and another of the Queen and Prince Philip surrounded by their great-grandchildren.
The monarch celebrated her birthday at the Duke of Edinburgh's cottage on her Sandringham estate, a property she said her late husband "loved".
Along with this, the Royal Windsor Horse Show released an image of the monarch taken last month at Windsor Castle, where the Queen is flanked by two ponies, called Bybeck Nightingale and Bybeck Katie, that will both take part in the show's tribute to the monarch.
To mark the day, the Changing of the Guard went ahead as usual at 11.00 am, however, it took place at Windsor Castle rather than Buckingham Palace.
As the Band of the Coldstream Guards played Happy Birthday, people in large numbers enjoyed glorious spring sunshine that were gathered to watch.
The Barbie doll, designed to capture the Queen's likeness, was released to commemorate her 70 years on the throne by toymaker Mattel. As part of the Barbie tribute collection, the company said they pay tribute to "visionary individuals with an outstanding impact and legacy".
The doll is dressed in an ivory gown with blue ribbon, and features details drawn from the monarch's past. It wears a recreation of the tiara worn by the Queen on her wedding day, and pink and blue ribbons modelled after ones given to her by her father George VI and grandfather George V, the company said.
