The Da Vinci Code

I know, it is just a Movie, But i was going through my family tree and found a line that goes to an ancient Jewish family, link to them here in the family tree, and I know its not perfect. but this is Jewish Royalty at the time. Or they never would have married onto the family they did.

So I start to say well, here is the supposed line to Jesus, or at least king David, And I a haven't found any Saint Clair's, then all the sudden I did?