11. Joint Postmaster General between 1790 and 1798 and Master of the Horse between 1798 and 1804. 12. The Dictator then appointed a Master of the Horse to serve as his most senior lieutenant. 13. He served as Master of the Horse between 1821 and 1827 and again briefly in 1835. 14. He served as Master of the Horse between 1858 and 1859 and again between 1866 and 1868. 15. He was also father of Marcus Fabius Ambustus, who also served as Master of the Horse . 16. In the 14th century, Sir John Brocas was Edward III's Master of the Horse . 17. This man came from a prominent patrician family, the Lucius Aemilius Mamercus as Master of the Horse 18. The Roman master of the horse Quintus Aulius Cerretanus attacked the Samnites who were harassing the Roman Camp. 19. He was a General in the Army and served as Master of the Horse from 1766 to 1778. 20. He notably served as Master of the Horse between 1886 and 1892 and again between 1895 and 1905.