Unfortunately the depressing result of corrections on the crossover between the du Plessis & the de Richelieu lines (tracked on this discussion: http://www.geni.com/discussions/108521?msg=795093) is that the du PLessis line is no longer directly connected to Charlemagne,
Once we established that these two cousin Francois duPlessis: http://www.geni.com/people/Fran%C3%A7ois-II-du-Plessis-Richelieu/60... and
the de Richelieu Francois duPLessis' line to Charlemagne is through his mother; whereas our Francois du Plessis' ancestor is the de Richeliu Francois' cousin only on the paternal line.
I have put the family trees and sources onto the du Plessis project; but felt I needed to give a heads-up to all those who suddenly find the line to Charlemagne is no longer there.
Does anyone have documents under their mattress that can 'pull a rabbit out of the hat on this one'? :-(