My father's family is from santander spain . What part of Spain ? Mine are from Cos. It was a little place there. My father was born and raised in San Lorenzo Puerto Rico.I wasdoing I have a book on his family, I'm going to see if this last name of your's is in the family tree. Maybe they new each other. My surname is Sanches de cos . Now is coss, it's a long story. I will ask around for you. good luck on your search. I found family this way.