1.  The Pfalz is not part of the Palatinate, or vice versa.  Pfalz is simply the German place name for the English place name, Palatinate.  They mean the same thing, just as Rheinland-Pfalz is the German place name for the English version, Rhineland-Palatinate.

2.  Alsace-Lorraine has a complex history.  Alsace and Lorraine are officially, now, Regions of France.  The Alsace Region, today, is comprised of the departments of Haut Rhin and Bas Rhin.  The Lorraine region is comprised of four departments, one of which is Moselle, whose capital city is Metz.

3.  Sarrewerden is the French place name for a commune in Bas Rhin Dept., Alsace Region, France (the German spelling is Saarwerden).  Gœrlingen and Kirrberg are also communes in Bas Rhin Dept.  None of the three is a "county" and none is "inside" the other.  They are of equal standing and mutually exclusive (i.e., you cannot be in more than one of them at the same time).

4.  The Kirrberg District of Homburg, in the Saarland, Germany, is not the same place as the Kirrberg in the Bas Rhin Dept. of France — and it's Kirrberg, not Kirberg.

5.  Barbelroth is a municipality in the Südliche Weinstraße Kreis (Suedliche Weinstrasse District), in the Pfalz (Palatinate), now the Rheinland-Pfalz (Rhineland-Palatinate), Deutschland (Germany).

6.  At one time, Bavaria had administrative control over southern Germany, including the Pfalz.  This does not mean the family was ever in what we, today, would call Bavaria, so it is advisable to always place the Pfalz in Germany, so as not to confuse the issue.
 

Some secondary sources take his pedigree back farther, but most don't, which says to me the connections are not widely accepted, so I'm stopping here.

Some say Jean was born in Barbelroth, others say in Gœrlingen.  I don't know which is correct, if either.

1.  Public Member Trees (online at Ancestry.com).

2.  WorldConnect / Ancestry World Trees (online at RootsWeb.com/Ancestry.com).