The Sulzbach line was related to the Palatinate-Neuburg line who were Electors Palatine. The
Elector of the PalatinateCharles III Philip failed to produce a legitimate male heir, as did his brothers. Joseph Charles, the eldest son of the Count Palatine of Sulzbach, was the heir apparent. On 2 May 1717 Joseph Charles married
Countess Palatine Elizabeth Augusta Sophie of Neuburg (1693–1728), the daughter of Charles III Philip, a match intended to unite the two lines and prevented another
succession war.
However, all the sons fathered by the couple died in infancy and only three daughters survived. In 1728 Elizabeth Augusta died in childbirth and Joseph Charles died the following year in
Schloss Oggersheim. Therefore, the inheritance of Palatinate-Sulzbach and the eventual inheritance passed to Joseph Charles' brother
John Christian Joseph and his family.
Die Familienzweige der Pfälzischen Wittelsbacher, Herausgeber staatliches Liegenschaftsamt Heidelberg, Oskar Klausner, 1995 erschienen im K. F. Schimper Verlag Schwetzigen
Hier Wittelsbach hier Pfalz – Die Geschichte der pfälzischen Wittelsbacher von 1214–1803, Pfälzische Verlagsanstalt, Landau 1986,
ISBN3-87629-094-5
Karl Lochner: Schloss und Garten Oggersheim, Verlag der Pfälzischen Gesellschaft zur Förderung der Wissenschaften, Speyer 1960