Reeves says, while many great minds, as Lord Chief justice Hale, Lord John Somers, Henry Spellman, Dr. Brady and Sir Martin Wright think feudalism came in with the conqueror, others, as Coke, Seldon, Bacon and Sir Roger Owen are of opinion that tenures were common among the Saxons. Blackstone, Dalrymple and Sullivan endeavor to compromise the dispute by admitting all imperfect system of feuds to have been instituted before the conquest.--History of English Law, Vol. I., p. 18-19.