Hi, is nice that you get in touch with me, excuesme if my english is not as good as yours, but this is my e-mail francisnavares@hotmail.com, as soon as you send me yours I can try to explain our family tree.
Just tell you that our surname is one of the oldest of Spain, and ends in "s", because we didn't have any touch with the arab people, all the surnames that ends in "z" means that their surname cames from Soud Arabia.

Best regards.
Francisco Navares