Herod was a Thoroughbred racehorse. He was one of the three foundation sires of the modern Thoroughbred racehorse, along with Matchem and Eclipse. Herod was the foundation sire responsible for keeping the Byerley Turk sire-line alive.

Prunella was a British Thoroughbred racehorse. Raced from 1791 to 1794, she won three races including a Sweepstakes of 200 guineas each at Newmarket. She was retired to stud and became an influential broodmare, foaling Epsom Derby winner Pope and Epsom Oaks winner Pelisse. Her daughters also went on to become top broodmares in their own right. She was owned by Augustus FitzRoy, 3rd Duke of Grafton.