Spanish to English Art/Literary Poetry & Literature Ancient Greek Literature

The whole sentence is:
"Recluido en un rincón de palacio, sin amor, solitario, Edipo, cansado de soportar los maltratos de Eteocles y de Polinices, maldice a sus hijos barones: de él heredarán tan solo la discordia y la guerra."

Oedipus has two other children, Antigone and Ismene - they are not mentioned as being cursed, so I'm wondering if "hijos barones" means something less straightforward than it appears.