Sea The Stars will stand at a fee of €250,000 next season, a 25% increase on this year's fee.

The 19-year-old Gilltown Stud stallion is currently the leading sire of three-year-olds in Europe in 2024, a crop that includes Group 1 winner Sosie and Group 2 winner and Arc runner-up Aventure.

He has achieved his highest ever number of annual stakes winners this year, with 28 to-date including Group 3-winning two-year-old The Lion In Winter (currently favourite for next year’s 2000 Guineas), and his yearlings have sold for an average of €363,000.

The Aga Khan, owner of Gilltown Stud, has four stallions in France at Haras de Bonneval.

They are headed by Siyouni whose fee remains at €200,000 next year. His flagbearer this year was Mqse De Sévigné, who added three more top-level victories to her impressive record, building on her two Group 1 wins from the previous season.

Siyouni's two-year-olds of 2024 look particularly exciting, including Group 3 winner and Group 1 Prix Marcel Boussac second Zarigana and Group 1 runner-up Mount Kilimanjaro. He was ranked third in Europe by yearling average at the sales, with a price of €387,000.

Zarak's fee will increase from €60,000 to €80,000. He is currently the second leading sire in Europe with 11.8% stakes winners to runners in 2024. This year he was represented by Group1 Poule d’Essai des Poulains winner Metropolitan, who also finished third in the Group 1 St James’s Palace Stakes.

He also achieved his highest ever prices at the yearling sales, with his offspring registering an average of five times their conception fee.

The Aga Khan Studs’ newest recruits, Vadeni and Erevann, will remain unchanged at €18,000 and €8,000 respectively in 2025, having both covered a full book of mares in their first season at stud.

Cartier champion three-year-old Vadeni won the Prix du Jockey Club and Eclipse Stakes, before finishing runner-up in the Prix de l’Arc de Triomphe.

Group 2-winning and Group 1-placed miler Erevann boasts an attractive stallion’s pedigree, being a son of sire of sires Dubawi out of Siyouni’s triple Group 1 winning daughter Ervedya.

GILLTOWN STUD FEES

Stallion 2025 fee (2024 in brackets)

Sea The Stars €250,000 (€200,000)

HARAS DE BONNEVAL

Stallion 2025 fee (2024 in brackets)

Siyouni €200,000 (same)

Zarak €80,000 (€60,000)

Vadeni €18,000 (same)

Erevann €8,000 (same)