Moravcsik was born June 25, 1928, in
Budapest. His father,
Gyula Moravcsik, was a professor of Greek philology and Byzantine history. His mother, Edit Moravcsik (née Fleissig), assisted her husband and taught language in Budapest. His grandfather, Fleissig Sándor, was a prominent Hungarian banker and politician. His brother was
Julius Moravcsik, an academic philosopher who taught at Stanford University. His sister is
Edith A. Moravcsik, a noted academic linguist who teaches at the
University of Wisconsin–Milwaukee. He was married to Francesca Moravcsik and had two children,
Andrew Moravcsik, Professor of Politics and Public Affairs at Princeton University. His daughter Julia is a cognitive psychologist residing in
Boulder, Colorado. ==Education, scientific interests and professional accomplishments==