Well back in the maternal pedigree of Sepoy, the home bred colt who won the Golden Slipper for Darley boss Sheikh Mohammed on Saturday, is an inbreeding pattern so close it is rarely seen.

Dealt with in a feature review on Sepoy’s breeding published in the April edition of the national thoroughbred monthly magazine Bluebloods, it traces the powerhouse chestnut colt’s breeding seven generations along the bottom line to a mare named Triplane.

She was a mare whose paternal and maternal grandsires were the same horse, one named Two.

He was himself a leading 2-year-old, winning two majors at 1200m at this age, the AJC Champagne Stakes and VRC Ascot Vale Stakes. The latter was changed in1969 from being an event for juveniles to one for 3-year-olds.

Triplane was bred on a cross of a son, Merab (won the Oakleigh Plate and Adelaide Guineas), and daughter, Triangle (won Adelaide Goodwood Handicap and Dequetteville Stakes), of Two.

In addition Triplane doubled up two folklore heroes of Australian racing, Carbine (‘Old Jack’) and The Barb (‘The Black Demon’).They got into the breeding through Two being out of a mare by Wallace, Carbine’s greatest racing and sire son in Australia and a product of a daughter of a mare by The Barb.

Much more closer to home in Sepoy’s maternal breeding is a reservoir of Golden Slipper brilliance. To start with he is a September 29 foal produced by Watchful, a daughter of Danehill, sire earlier of five Slipper winners, paternal grandsire of four, great grandsire of one and great grandsire of another maternally.

Watchful is a sister to Queensland Derby and Guineas winner and five times Group1 minor placed Camarena and to the good 2-year-old Untouchable.They are from Canny Miss, a three-quarter sister by Marscay to the brilliant Group1 performers Canny Lass and Canny Lad. Marscay and Canny Lad both won the Slipper.

Watchful is also bred on similar lines to Rothesay, a new addition this year to the spectacular line up of locals in the stallion yards at the Glenlogan Park stud at Innisplain, Queensland. He is by Danehill’s Coolmore sire Fastnet Rock, the sire of Mosheen, the runner up to Sepoy in Saturday’s Slipper, and from a daughter of Canny Lass.

Another relation is Camarena’s daughter Camarilla, a winner of the AJC Sires’ Produce Stakes and MRC Blue Diamond Prelude, second in the STC Magic Night Stakes, third AJC Champagne Stakes and fourth in the Blue Diamond.

As they are both by the former Darley shuttled Elusive Quality (by the Mr. Prospector sire Gone West),  one of America’s premier sires, Sepoy and Camarilla are blood brother and sister.

The first winner of the Blue Diamond – Slipper double since Courtza in1989, Sepoy is the first Slipper winner for Sheikh Mohammed and also for his trainer Peter Snowden. Peter, a former Scone jockey and trainer, and his assistant son Paul, fronted the media for the juggernaut after Saturday’s triumph.

After Sepoy was bred, his dam Watchful was sold at the Inglis Easter mare sales for $55,000 to  Emirates Park Pty Ltd, owner of studs in the Hunter Valley and Victoria. She went to Domesday at Darley’s Victorian stud last season and has a September 20 service date.

Picture: Sportpix