Briseis foaled in 1873, was a brown Australian Thoroughbred filly that is regarded as one of the greatest mares ever foaled in Australia. As a two-year-old she won the AJC Doncaster Handicap and the weight for age AJC All Aged Stakes. Then as a three-year-old she won the VRC Victoria Derby, the Melbourne Cup and the VRC Oaks, all within six days.