Sad news for arts lovers with an eye on the horses - Sadler’s Wells, dubbed the greatest-ever sire of racehorses, died this week aged 30. His parents were the champion sire Northern Dancer and Fairy Bridge, and the arts supplied the names for racing's most legendary dynasty that would dance to victory again and again. Half-brother to Nijinsky and Nureyev, sire of Old Vic, Sadler's Wells brought the dancing line in horseracing to a superb peak.