William Peter Mullins is an Irish racehorse trainer and former jockey. He is a seventeen-time Irish National Hunt Champion trainer. Mullins is the most successful trainer in the history of the Cheltenham Festival, having saddled more than 100 winners.
Mullins eyes British title after Grand National win
Willie Mullins is closing on the British trainers' title after the Irishman won the Grand National with I Am Maximus.
BBC Sport