The Irish man was crowned Champion jockey 11 times, a record shared with Lester Piggott, and winner of 14 Great British Classic races.
Starting his career in 1967, he rode 4,633 winners in British Flat racing. He retired in 2003 and found success as a trainer including most notably 2009 Gran Criterium victor Hearts Of Fire (Italy).
A legend in his time, he won the Derby three times: Grundy 1975, Golden Fleece 1982 & Quest For Fame 1990.
He found international race success winning at the highest level in France, Canada, Germany, Ireland (11 Irish Classic race victories), Italy (Old Country 1982 Italian Derby), Slovakia (Lonango 1997) & Japan (Jupiter Island 1986).
Eddery was particularly proud of his achievements in the United States. Tolomeo (1983) winning the Arlington Million, Sheikh Albadou (1991) Breeders' Cup Sprint & the outstanding Pebbles (1985) when teaming up with Clive Brittain to win the Breeders' Cup Turf.
He leaves a wife and three children.
A P McCoy tweeted: Very sad news to hear of the passing of Pat Eddery true genius in the saddle. #Legend