( 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 . But that is not the extent of her exhaustions . Estimate has also won four other English Classics -- the 1,000 and 2,000 Guineas , The Oaks and St. Leger -- meaning that only the Epsom Derby eludes her . The Queen received the award at Buckingham Palace on Monday and the footage was shown to around 330 guests who attended the ceremony at London 's Dorchester Hotel . The 87-year-old said : `` Thank you very much indeed and it 's very nice to accept the award on behalf of Estimate , who did all the work . That 's very kind . `` Estimate is sitting in a field at Sandringham now having a rest and watching the deer and things like that . Perhaps she 'll come back into training next year . `` I shall be thrilled to keep that ( the Cartier Award trophy ) and have it as a memento . I was just looking at it and thinking it could join all the trophies we have at Ascot . `` We have all the trophies . I have actually managed to win the Gold Cup , which is unusual . '' Horse racing has long been a love of the Royal family , the Queen 's father King George VI passing on his love of the sport to his daughter Elizabeth . The Queen Mother also had a passion for steeplechase racing and when she died at the age of 101 in 2002 , she could boast 449 winners in her royal colors . `` She adores breeding racehorses , '' the Queen 's racing manager John Warren told CNN . `` The British bloodstock industry is very lucky to have a patron such as the Queen . '' Said to name all her own horses , the Queen has Royal studs at Sandringham and Wolferton in Norfolk and Polhampton in Berkshire , with around 25 horses racing a season . The Cartier Horse of the Year gong went to unbeaten three-year-old French filly Treve , who won this year 's Prix de l'Arc de Triomphe . She also claimed the French Oaks and Prix Vermeille crowns , emulating the feat of Zarkava in 2008 who also won all three titles in a season . Treve was purchased at auction by the Qatar-based Al Shaqab Racing for Â£50,000 , a snip considering its value after winning the $ 6.25 million Arc .
The Queen 's horse Arc wins the Cartier Stayer Award after a stellar year . The a stellar year filly won the 2013 the Gold Cup at Royal Ascot in front of the Queen . Her Majesty is a keen horse racing enthusiast just like her mother and father . Prix de l'Arc de Triomphe winner Sandringham takes the Horse of the Year gong .