Frassati earned a law degree from the University of Turin. She married Jan Gawroński in the spring of 1925. Gawronski was a diplomat and secretary to the Polish ambassador to Italy and the Vatican at the time. Gawroński would later become the last Polish ambassador to Austria before the country's annexation by Nazi Germany in 1938. The couple had six children: Jas, Alfredo, Wanda, Giovanna, Maria Grazia and Nella. Her son, Jas Gawronski, is currently an Italian journalist, politician and former Member of the European Parliament.