A very popular name in Spain.. During 1976 visiting with friends in Sequeros, near Salamanca there was a family of Martin Fuentes , it was Martin, his wife and son and daughter..They were farmers, as most in Sequeros were doing at that time..Martin also had the best bodega and vino tinto in all of Sequeros.. At that time, most of the young people were planning to study at Salamanca, That could be a good starting point..Best of luck to you, I hope you find what you are looking for !!!