Claim: Istabraq had a Sire Sadler's Wels (b. 1981) and a Dam Betty's Secret (b.1977)
Evidence: Sadler's Wells Sadler's Wells (11 April 1981 – 26 April 2011) was a thoroughbred racehorse who was bred in the United States but raced in Europe, winning the 1984 Irish 2,000 Guineas, Eclipse Stakes and Phoenix Champion Stakes. Betty's Secret Dam
Betty's Secret (USA)
ch. 1977 
Dam
Betty's Secret (USA)
ch. 1977 Sire
Sadler's Wells (USA)
b. 1981