(CNN) -- It is a horse that most certainly meets with Royal approval but for now the Queen is happy for her filly Estimate to luxuriate in the grounds of her Sandringham estate. But even while the four-year-old puts her feet up after a hectic year on the track she is still winning prizes -- adding the prestigious Cartier Stayer Award to her impressive haul of trophies. Estimate's most notable triumph was victory at the 2013 Gold Cup, as a thrilled looking Queen cheered it home from the Royal Box at Ascot. Ridden by Ryan Moore, Estimate stormed to victory in the prestigious Group One race in June, the first time in its 207-year history that the British monarch had owned the winner.
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The Queen's horse Estimate wins the Cartier Stayer Award after a stellar year
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The four-year-old filly won the 2013 Gold Cup at Royal Ascot in front of the Queen
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Her Majesty is a keen horse racing enthusiast just like her mother and father
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Prix de l'Arc de Triomphe winner Treve takes the Horse of the Year gong
"Estimate is sitting in a field at @placeholder now having a rest and watching the deer and things like that.