Charles de France, duc de Basse-Lotharingie - Son of Karl von Niederlothrigen (Karol de Basse Lotharingie)

The listed son Louis Springer is NOT the son of Karl. here is something mixed up.
The son of Karl is Louis de Basse Lotharingie (Ludwig von Niederlothringen) * long bef 989, + abt 1023.

the here listed Louis springer is born 1042 and died 1123. He is called the builder of the Wartburg castle. His father was Ludwig der Bärtige (+ 1056), the main father of the "Ludowinger".
Ludwig der Bärtige, and not his son Louis Springer, married Cecilia von Sangerhausen