Sheikh Mohammed is among those celebrating today

Sheikh Mohammed 70 owner of Darley & Godolphin

Charles Barnett 71 Aintree MD 1993-2007 & Ascot CEO 2007-15

Geoff Stickels 75 former clerk of the course at Lingfield & Brighton

Julien Leparoux 36 US champion jockey 2009

Paul Perry 70 trainer of Choisir & Fastnet Rock

Lavinia Taylor 67 trainer of Gingembre & Montgermont

David Bell 67 trainer of Kissin Kris & Fly For Avie

John Balding 74 trainer of Blyton Lad & Matty Tun

Eric Apter 79 rider of Kingfisher Blue & Flying Officer

Daniel Muscutt 25 rider of Fleur Forsyte & Permission

Jane Williams 37 champion lady point-to-point rider 2011-12

Stephen Crown 75 ROA president 2006-07

Giles St Lawrence 50 stud groom at Stetchworth & Middle Park Studs

Alain Bates 67 Maisons-Laffitte trainer

Kevin Tobin 34 jump jockey-turned-addiction counsellor

Dr Guy Staight 62 rider of The Wrestler

Ob Singh 31 yardman at Manor House Stables