john of salisbury was an anglosaxon/norman bishop (from salisbury) who wrote a lot. a contemporary of thomas beckett, he wrote about his murder by some of the king's knights*. he apparently took a lot from the works of others. sir isaac newton made another reference to standing on the shoulders of giants. giants of course were northern mythical beings for the most part (except goliath). the angles and saxons were german tribes, the normans were sacdiwegian vikings that settled in france. i gather they were given normandy as a bribe to keep them away from paris, and acting as a buffer against future viking raids. norman = northmen, normandy - the province of the normans.
*thomas, a good friend of the king who was appointed to high office by him, was also critical of much he was doing as king to take power from the church. on one particularly wrexing day the king shouted 'why do you let this priest treat me so?', a few of his knights, to ingratiate themselves, killed thomas. the king was not amused as it got him in big trouble with the pope, the killers were excommunicated, later being forced to fight in the holy lands for 14 years. thus we can blame them for ISIS.