http://en.wikipedia.org/wiki/St_Lambert:

Shortly after Lambert's (and Plectrude's) family had murdered Dodo, a domesticus of Pepin of Heristal and father of Pepin's mistress Alpaida, Dodo's relatives murdered Lambert out of revenge, on his estate, the Gallo-Roman villa that has become Liège. The official Roman Catholic version is that Lambert became a martyr for his defence of marital fidelity, denouncing Pepin's liaison with Alpaida, daughter of Dodo, who was to become the mother of Charles Martel

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http://a.decarne.free.fr/gencar/dat23.htm#15

genealogy still continues backwards from here at this site. Sharon Doubell

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Childebrand was a noted dignitary in 673.