Maceo's mother, whose family name was Grinan, came from the town of Mayari where all the people have Indian blood in their veins.

Col.
Martinez del Campos, father of General Martinez Campos, was once Military Governor of Mayari.

While there he loved a beautiful girl of Indian and Negro blood, who belonged to the Grinan family, and was first cousin to Maceo's mother.

Martinez Campos, Jr., the future General and child of the Indian girl was born in Mayari.

The Governor could not marry his sweetheart, having a wife and children in Spain, but when he returned to the mother country he took the boy along.
According to Spanish law, the town in which one is baptized is recognized as his legal birthplace, so it was easy enough to legitimatize the infant Campos.