non-reigning houses of the "Brythonic Pendragon House Of David"
House Of Rennes (not including cadet branches and spelling variations stemming from Bourbonne Dynasty reference ancestor:Hilderic De Bourbonne)
House Of Vere(not including all branches french and english) *can be tied to Huegenots as well.
other houses where the male line died out:
House Of Flanders(King John's descendants live through his daughter's line)
House Of Fulk(Anjou&crusader kings of Jerusalem)
House Of Baldwin
House Of Welf(Conradines)
House Of Valois
Later House Of Bourbon( expression, "Let them eat cake" killed them in uprisings)