GENI took me off the beaten MP'd path to his profile and found this and made connections to the 'Big Tree' according to his profile - I have started the documentation as to why correcting and breaking off and connecting to correct parents -
I have placed info I found under each profile - and seems to be some great conflicts by information in them
@William "Le Clito" de Flanders, III, Count de Flanders
@Isaac de Cambrai, comte de Cambrai et de Valenciennes