Aga Khan Studs homebred three-year-old filly Edaja (Siyouni) added to her debut victory at Chantilly last month and remained unbeaten after pouncing late for the Francis Graffard stable back there in Thursday's Prix des Princesses. Patiently ridden in midfield until turning for home in the one-mile Polytrack test, she challenged out wide passing the furlong pole and edged ahead for a narrow verdict in the dying strides of a bunch finish. Edaja retains entries for the May 10 G1 Poule d'Essai des Pouliches and June 14 G1 Prix de Diane....