So it's definitely NOT his "given" name, then (see page 28). It is a common thing for the eldest son to be referred to by his title's location name among close friends, but I find it interesting that he allowed these new acquaintances to do this so quickly. Obviously, they became friends later, but still. Of course, we are told that his family wasn't too well brushed-up on the niceties of the nobility, so perhaps this is why he does as he does. Stacy