Bertha of Prüm ¹

  General Notes:

Berthe, Princess N? Married Name: de Laon. Born: before 690, daughter of Theodard N? , Berthe is presumed to have been at least 15 years of age by the time her son Charibert was born. Married before 704: Martin de Laon, son of Ansegis=Ansegisus, Duke d'Austrasie and Sainte Begge=Begga de Landen . Died: after 720 Berthe was a Merovingien princess. She founded the Abbey of Prum in 720. Also known as Bertha of Austrasia.

Possible parents and a line back to Merovech (this line has circumstantial evidence only from what I have read but still widely popular)

A weak chain in this line is Berthe the Elder (of Prüm), who is supposed to be a Merovingian princess. This is neither generally accepted, nor 100% proven. A different version is supported by Siegfried Rosch in "Caroli Magni Progenies" (1977 Degener Verlag), where she is the daughter of Pfalzgraf Hugobert, who died 697/698. But Christian Settipani makes plausible in his "Les ancêtres de Charlemagne" (ISBN 2-906483-28-1) that her father was the Merovingian king Thierry III. He gives many arguments for this hypothesis. When Berthe donated land to the abbey of Prüm, the donation document was co-signed by her son Caribert and three witnesses - which are supposed to be her relatives - with the typical Merovingian names Bernier, Rolande and Thierry. Christian Settipani also mentions this theory in La préhistoire des Capétiens, page 116.
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  Research Notes:

My information and source can be found at Foundation for Medieval Genealogy

Bertha married Unknown.

Bertha next married Unknown.