The Merovingians were descendents of Jesus and Mary Magdalene (or so the story goes). The bloodline of Christ was the true Holy Grail, don’t ya know. ;^)
San greal versus Sang Real!
In Old French, san graal or san gréal means “Holy Grail” and sang réal means “royal blood”; Holy Blood; Holy Grail was based on this pun.
“The Merovingians were descendents of Jesus and Mary Magdalene”
http://www.johnspeedie.com/healy/bull.wav