Brother of writer
Riccardo Mantoni and father, with first wife Luciana Guerra, of Roberto Mantoni (born in 1953) who in turn had two children, Lorenzo and Cristina, with his wife Daniela. From 1973 Corrado lived together with
Marina Donato for 23 years before marrying her. They married in Rome with civil ceremony. The ceremony was officiated by mayor
Francesco Rutelli. The people invited were 22, including
Silvio Berlusconi, founder of the Fininvest Group and of the political party Forza Italia.