docs: def maiden(self):
          """Maiden last name, can be None"""
          if self._dialect == DIALECT_DEFAULT:
              # for default/unknown dialect try "maiden" name record first
              for name in self._names:
                  if name.type == "maiden":
                      return name.value[1]
          # rely on NameRec extracting it from other source
          if self._primary and len(self._primary.value) > 3:
              return self._primary.value[3]
          return None