The two Group 1 races at ParisLongchamp on Sunday were both won by horses with an Aga Khan Studs connection.

Sea The Stars colt Sosie became only the second horse to do the Ganay-Ispahan double this century after Cirrus Des Aigles in 2014. The Wertheimer homebred was the ready winner of Sunday’s Prix d’Ispahan and has set himself up for a tilt at the Eclipse Stakes in July.

"The Wertheimer brothers were keen to run him in the Eclipse so we had to test him over the shorter distance, so the option was the Ispahan," said trainer Andre Fabre. "I was delighted. For a horse that is able to run a mile and a half and over, to have speed enough to beat those nice horses, it’s the best we could expect."

The owners' racing manager Pierre-Yves Bureau added: "We had that slight worry about whether he has enough natural speed for this and 1850 metres [9½f] is a different game to when he won the Grand Prix de Paris over 2400 metres [12f] last year or even the Ganay [10½f] the other day.

"Maxime [Guyon, jockey] rode him quite forward and set about the leaders early enough because he's a horse that needs to be wound up, but he's just a very good horse.

"He's a magnificent horse to look at who is now physically mature and, while it's a middle-distance family, his dam won over a mile."

The next race was the Prix Vicomtesse Vigier, run as a Group 1 for the first time after being upgraded by the Pattern Committee. Despite it only being his fifth racecourse start, Candelari struck for home two furlongs out and won by three and a half lengths.

"This was a proper Group 1 test and I think he's a champion at this trip,” said trainer Francis-Henri Graffard of this son of Frankel and Candara. “He's entered in the [Ascot] Gold Cup. We'll see how he comes out of this, but you know I like to challenge over there when the opportunity presents itself."

Candelari is a half-brother to three further Stakes winners, including Group 2 winner and Group 1 runner-up Candarliya, who herself was responsible for Listed Prix Finlande winner Cankoura on Thursday. Dam Candara has visited Aga Khan stallions for the past three seasons – she has a yearling colt by Zarak, a colt foal by Vadeni and has recently been covered by Erevann.

At Dusseldorf meanwhile, D’Ores Et Deja came very close to winning the Gr.2 German 1000 Guineas, finishing only a length behind the winner. She is the fifth Classic performer from the first four crops by Zarak, after Metropolitan (1st Poule d’Essai des Poulains), La Parisienne (2nd Prix de Diane), Spanish Eyes (2nd Preis der Diana) and Times Square (3rd Poule d’Essai des Pouliches).