Doyoun, a homebred classic winner for the Aga Khan and sire of two Breeders' Cup Turf (gr. IT) winners, died Dec. 5 of intestinal cancer at the Izmit Central Covering Station near Istanbul. The 17-year-old son of Mill Reef was sent to Turkey in the fall of 1998 to stand at the Turkish Jockey Club. He formerly stood at the Aga Khan's Gilltown Stud in Ireland.Irish-bred Doyoun, whose classic win came in the 1988 General Accident Two Thousand Guineas (Eng-I), sired back-to-back Turf winners in Daylami and Kalanisi. Bred by the Aga Khan, Daylami won the 1999 running as a lessee for the Maktoum family's Godolphin on his way to an Eclipse Award as top grass male. He also was a three-time champion in England, and a champion in France and Ireland. He earned $4,614,762.Kalanisi, a homebred for the Aga Khan, won the 2000 Turf and was North America's champion grass male that year. He was a group I winner in England and earned a career total of $2,148,836.Doyoun, who is represented by 31 stakes winners, enjoyed additional success in North America. His son Manndar won the 2000 Manhattan Handicap (gr. IT) and Woodford Reserve Turf Classic Stakes (gr. IT) and retired a millionaire. Another son, Takarian, won two runnings of the American Handicap (gr. IIT).Doyoun, who was produced from the Kashmir II mare Dumka, won three of seven races and earned $356,189.