After he returned to Paris as a refugee, Hartung and his wife divorced, and he became depressed. His paintings were becoming more abstract and did not sell well. His friends tried to help him with his financial difficulties, and the sculptor Julio González offered him the use of his studio. In 1939 Hartung married González’s daughter Roberta.
Hartung's freewheeling abstract paintings set influential precedents for many younger American painters of the sixties, making him an important forerunner of American Lyrical Abstraction of the 1960s and 1970s. He was featured in the 1963 film documentary "School of Paris: (5 Artists at Work)" by American filmmaker Warren Forma.
In 1957, Hartung and Anna-Eva Bergman remarried. He died on 7 December 1989, in Antibes, France.Wikipedia