Christopher Columbus: Templar?

I think the knights Templar discovered  America before Christopher Columbus, But it is possible that Columbus himself was a Templar. Evidence of this is that he signed his name with a hooked x (Grail Symbol) here is a pic of his signature below. Also he had a Templar cross on his ship's sails and there is Templar blood in his family. (I will explain this bloodline in another post).

 




Look at the first X and compare it to the hooked X below it.
Now look at the sails of his ships they have Templar crosses.