in spain a name usually has three parts: the first name, the father's last name is used from one generation to the next. mother's last name goes only to one generation-to her sons and daughters.9 traditionally, parents give their children the grandparents' first name. they name they name the first girl after the father's mother. parents name the second boy after the mother's father and the second girl after the moter's mother. the child's name tells the family history.