As I can see no reason to think either Susan Fontanarossa or Domenico Columbo were Jewish, so they would not have had to sign a Jewish prenuptial agreement (Ketubah)
ketubah = כתובה
A ketubah is a marriage contract. The ketubah is like a marriage license from the state, but it is made up for Jewish couples. It has elements of a prenup in it, and the rights and obligations of the man AND the wife.
Ketubot
Neither a relative of the groom nor bride can sign the ketubah - it has to be a Shabbat-observing non-related male.
No, the ketubah is signed in a private ceremony before the public ceremony. It is read out loud during the public ceremony though.
Ketubah
Call your rabbi and ask about how to get a replacement.
A ketubah is a sort of Jewish marriage contract, designed to protect the wife financially in the event of a divorce or her husband's passing. Custom ketubahs are available at a variety of places.
Ask the rabbi what to do.
It's the Jewish marriage contract.
A. Leo Levin has written: 'New provisions in the ketubah' -- subject(s): Divorce (Jewish law), Ketubah, Marriage (Jewish law) 'Dispatch and delay' -- subject(s): Administration of Justice, Court congestion and delay
you can ususally use a certificate stating membership of a synagogue or a Ketubah if you are married.