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Queen Elizabeth is about to be a great-grandmother and celebrate the 60th anniversary of her coronation. But she now has another title to add her repertoire: the first member of the Royal Family to win Britain's prestigious Gold Cup race.

Queen Elizabeth's 4-year-old horse Estimate won the two and a half mile race today, which is part of the five-day Royal Ascot race that ends on June 20. Her son, Prince Andrew Duke of York presented an ecstatic Queen with the Gold Cup as a reward.

According to the Royal Ascot website, Gold Cup Day is known as "ladies day" because it is when the female attendees roll out their greatest outfits.

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Although the race began 207 years ago, a horse of the royal family had yet to win the Gold Cup title, giving Queen Elizabeth's victory a place in filial history.

Estimate has won other races as well, most recently the Sagaro Stakes in May, which also took place at Ascot, according to the BBC.

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