A photo montage of some of the top sire's most illustrious sons.

Cheltenham Gold Cup winner Denman (Healyracing.ie)

Denman in action at Punchestown (Carolinenorris.ie)

Denman and Sam Thomas before the Gold Cup at Cheltenham (Healyracing.ie)

Gold Cup winner in 2006 - War Of Attrition and Davy Russell jumping in style to win at Thurles (Healyracing.ie)

Yorkhill and Ruby Walsh winning at Cheltenham (Carolinenorris.ie)

Ballabriggs winning the Kim Muir Handicap Chase at Cheltenham in 2010 (healyracing.ie)

Ballabriggs and Jason Maguire on their way to Grand National glory in 2011 (Photo Healyracing

Rogue Angel and Ger Fox return after winning the Irish Grand National (Photo Caroline Norris)

First Lieutenant winning the Betfair Bowl at Aintree (Healyracing.ie)

Thyestes winner On His Own and Ruby Walsh jump the final fence to win the Grade 2 Attheraces BobbyJo Chase at Fairyhouse (Photo Healyracing.ie)

Harry Skelton celebrates his victory aboard Niche Market in the Powers Whiskey Irish Grand National Steeplechase at Fairyhouse in 2009

Photo Peter Mooney

Weapon's Amnesty and Davy Russell winning the RSA Chase at Cheltenham (Caroline Norris)

Dunguib and Brian O'Connell - winner of the Cheltenham bumper (healyracing.ie)

Multiple graded winner Ballycasey (Photo Healyracing.ie)

Rachel Robinson of Glenview Stud on the ITM Stallion Trail in 2016 (Photo Amy Lynam)