George and Litsa Callas were an ill-matched couple from the beginning. George was easy-going and unambitious, with no interest in the arts, while Litsa was vivacious and socially ambitious and had dreamed of a life in the arts, which her middle-class parents had stifled in her childhood and youth. Litsa's father, Petros Dimitriadis (1852–1916), was in failing health when Litsa introduced George to her family. Petros, distrustful of George, had warned his daughter, "You will never be happy with him. If you marry that man, I will never be able to help you". Litsa had ignored his warning, but soon realized that her father was right. The situation was aggravated by George's philandering and was improved neither by the birth of a daughter, named Yakinthi (later called "Jackie") in 1917, nor the birth of a son, named Vassilis, in 1920. Vassilis's death from meningitis in the summer of 1922 dealt another blow to the marriage.