The bloodline of Jesus Christ - after his death - Mary's bloodline and two children. Seems to end in the 600's?
http://www.prieure-de-sion.com/4/genealogy_of_jesus_and_mary_860930.html
Genealogy and bloodline of Jesus..
Genealogy and bloodline of Jesus and Mary Magdalene
http://www.prieure-de-sion.com/4/genealogy_of_jesus_and_mary_860930.html