According to one of her biographers, Nicholas Gage, Callas and Onassis had a child, a boy, who died hours after he was born on March 30, 1960.
Podľa jedného z jej životopiscov Nicholasa Gagea, Callasová a Onassis mali dieťa, chlapca, ktorý zomrel iba pár hodín po tom, čo sa 30. marca 1960 narodil.