Current names for old.

Can anyone advise me as to what name would be used for the following
medieval names if they arent as they were then,
and assuming that they are actually given names of a person.

(1) GUILLAUME (Found in Wijnbergen Roll)

ScottyFLL...

As is mentioned, Guillaume is William in English. Here's a neat tool

(2) ARQUES (Found 'French arms and is an Ecclestiastic Arms ref.)

ScottyFLL...

Arques is a place name. It appears that there is either more than one
place named Arques, or that the place was in different governmental
jurisdictions at different times (I'm not too familiar with the

(3) HERESOL OR NERESOL (Found in The Bigot Roll)

ScottyFLL...

Heresol appears to be a name. There are arms granted to a Heresol de
and http://perso.modulonet.fr/~briantimms/era/db0800.html

John H