Galileo is a name that is synonymous with breeding and bloodlines throughout racing in Australia as well as racing globally such is the pedigree of his stock.
Based in the UK, Galileo boasted an impressive record on the track which included winning the 2001 Epsom Derby where he demolished the field by over 3 lengths.
Owners Coolmore Stud released a statement about the tragic events citing Galileo was put to sleep "on humane grounds owing to a chronic, non-responsive, debilitating injury to the left fore foot”.
"It is a very sad day," said Coolmore owner John Magnier.
"We all feel incredibly fortunate to have had Galileo here at Coolmore.
"The effect he is having on the breed through his sons and daughters will be a lasting legacy and his phenomenal success really is unprecedented."
Galileo leaves behind an amazing legacy of which 91 of his offspring have produced Group 1 Victories and out of those winners 20 of them have gone on to produce winners at Group 1 level as well.
Galileo was the world's biggest stud - a stallion so valued that his breeding fee was not advertised, but thought to be well over £300,000 a time.
Great names like Australia, New Approach and Ruler Of The World were all offspring of Galileo and even more recently Anthony Van Dyck who competed in the Caulfield Cup and tragically in the Melbourne Cup won Group 1 titles for the Coolmore Stud.
Probably the most famous offspring however was once the Worlds Highest Rated racehorse, Frankel.
The mighty Frankel went undefeated through his career and was without doubt a supreme advert for Galileo’s breeding legacy.