Aidan P. O'Brien (born October 16, 1969 in County Wexford, Ireland), is an Irish horse racing trainer. He is the private trainer for John Magnier and his associates at Coolmore Stud and heads up the training operation at Ballydoyle Stables in County Tipperary. Despite his relatively young age (early 30s), Aidan O'Brien has already rewritten the trainers' record books. Wikipedia
The definitive Wikipedia entry for Aidan O'Brien. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Aidan_O'Brien
The definitive Wikipedia entry for Aidan O'Brien. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Aidan_O%27Brien
