The Moment: HRH the Duke of Edinburgh Drives in 1977

Royal Windsor Horse Show 1977

His Royal Highness The Duke of Edinburgh takes the reins for the Driving at RWHS – pictured here one of Windsor’s water crossings.

The competition, which is based on three-phase horse trials, sees teams and individual horses tackle a driven dressage test followed by a marathon phase – where teams have to negotiate various obstacles or hazards while travelling across country. On the final day, the teams are back in the arena to contest the cones. Much like the showjumping test of eventing, this challenge is to prove that the horses and driver are still as fit, careful and skillful enough after the first two tests to complete a course of cones without dislodging the balls placed on top and incurring penalties.

His Royal Highness has represented Great Britain in three European Championships and six World Championships. He was President of the FEI from 1964 to 1986, during which time he was instrumental in setting out the international rules for horse Driving trials, which became an FEI discipline in 1970.