He was sired by Comus , who finished third in the 1812 Epsom Derby before becoming a successful sire of winners .
Grey Momus was strongly - built , heavy - shouldered grey horse , bred at Sledmere Stud in Yorkshire by Sir Tatton Sykes , 4th Baronet .
Grey Momus was sired by Comus , who finished third in the 1812 Epsom Derby before becoming a successful sire of winners .
Grey Momus was strongly - built , heavy - shouldered grey horse , bred at Sledmere Stud in Yorkshire by Sir Tatton Sykes , 4th Baronet .