Historically, upon the death of a pope, the camerlengo ceremonially destroyed the ring (as well as the bulla) using a hammer in the presence of the College of Cardinals. The practice of destroying a late pope's signet ring originated as a means to prevent the issuance of
forged documents during the
sede vacante (the interregnum between the death of one pope and the election of another). The
apostolic constitution Universi Dominici gregis, which governs procedures during the
sede vacante, directs the College of Cardinals to "arrange for the destruction of the fisherman's ring and of the lead seal with which Apostolic Letters are dispatched" during a meeting of the general congregation of cardinals, but does not set a specific time when the destruction must occur. However, the ritual typically occurs during a meeting of the general congregation of cardinals that precedes the
conclave to elect a successor. The broken Fisherman's Ring of
Pius IX is part of the Alice and Louis Koch Collection of 2,500 rings at the
Swiss National Museum in
Zurich. Upon the
resignation of Pope Benedict XVI in 2013, the first
papal resignation in more than six hundred years, Benedict's signet ring was not destroyed but was instead defaced by applying two deep cuts in the shape of a cross using a
chisel. The ring and seals of
Pope Francis were cut with a chisel by a laywoman in front of the
College of Cardinals at their last General Congregation on May 6, 2025, as seen in a video posted by Vatican News. ==References==