The mother of XXX is whom?
Alexander Sigismund von der Pfalz-Neuburg
A member of the House of Wittelsbach, Alexander Sigismund von der Pfalz-Neuburg was born in Neuburg an der Donau on April 16, 1663, the fifth son of Philip William, Elector Palatine and his wife Landgravine Elisabeth Amalie of Hesse-Darmstadt.
Landgravine Elisabeth Amalie of Hesse-Darmstadt