The colt began his three - year - old season in the 2000 Guineas over the Rowley Mile course at Newmarket .
Before the start of the 1838 season Grey Momus entered the ownership of Lord George Bentinck .
The colt began Grey Momus ' three - year - old season in the 2000 Guineas over the Rowley Mile course at Newmarket .
Before the start of the 1838 season Grey Momus entered the ownership of Lord George Bentinck .