The esquires, knights, lesser barons, even the remote descendants of peers, that is, the noblesse of other countries, in England remained gentlemen, but not noblemen - simple commoners, that is, without legal advantage over their fellowcommoners who had no jus imaginum to boast of.
If there was thus only a customary and unwritten law (and William of Tyre definitely speaks of a jus consuetudinarium under Baldwin III., quo regnum regebatur), then the "Letters of the Sepulchre" are a myth - or rather, if they ever existed, they existed not as a code of written law, but, perhaps, as a register of fiefs, like the Sicilian Defetarii.
Provincial governors were kept under strict supervision; extortion was practically unheard of; the jus Latii was bestowed upon several communities; special officials were instituted for the control of the finances; and the emperor's interest in provincial affairs was shown by his personal assumption of various municipal offices.
The jus annuli aurei, or right of wearing a gold ring, originally a military distinction, became a senatorial privilege, which was afterwards extended to the knights and gradually to other classes.
Bohmer's Jus ecclesiasticuni Protestantium (1714-1723), and van Espen's Jus ecclesiasticuzn (1702) detail at great length the relations of heresy to canon and civil law.