Hilaria Baldwin, wife of Alec Baldwin, is sharing a new photo of her “mystery baby” and also revealing the infant’s name. Fans were shocked when Hilaria posted a photo of her five children - plus a newborn - without explanation. Just three months ago, she was clearly not pregnant, as she holds her son Eduardo, then three months old. The math didn’t seem to add up. Today she posted that the baby’s name is Lucia.