The story of the bloodline of Jesus

Were the Knights Templar created to defend his descendants?

Did Jesus have a family by Mary Magdalene leading to a long bloodline that had to be defended by the Knights Templar? If there was a bloodline of Jesus - was it located in southern France or the deserts of Qumran in modern Israel? Did Jesus die on the cross or did he somehow survive to raise a family?

Let's try and get to the bottom of this. I'm going to…