The earliest existing mention of the Fisherman’s Ring seems to be in a letter addressed by Pope Clement IV, in 1265, to his nephew Pietro Grossi of St. Gilles, in which he states that in addressing members of his family he used the Sigillum Piscatoris, the _private_ seal of the popes.[420] It was not until the fifteenth century that this originally private seal came to be generally used for the papal Briefs. An impression of the Fisherman’s Ring of Clement VIII made in 1598, in the sixth year of the pope’s reign, is surrounded with a bit of twisted vellum. A comparison of this seal with the one used by Pius IX, shows the modifications of the established design due to the preferences of the engravers of successive rings. The ring of Pius IX was of plain gold, weighing about an ounce and a half, the design was engraved on an oval plate. It is said to have been made out of the gold constituting the Fisherman’s Ring of his predecessor, Gregory XVI.[421] It is thought probable that the custom of breaking the Fisherman’s Ring on the demise of a pope was first instituted at the death of Leo X in 1521. The papal engravers are believed to have kept a new ring ready in case of sudden need, leaving a blank space for the new pope’s name. When his election has been confirmed, the Cardinal Camerlengo places the ring on his hand, asking him at the same time by what name he elects to be called. The ring is then removed and given to the engraver for the addition of this name. In later times it has been kept permanently in the guardianship of the Cardinal Chamberlain, and has not been generally used for stamping documents, an iron die of like design being employed for this purpose. In at least one instance this ring was not destroyed at a pope’s death. When Pius VI expired at Valence, Aug. 29, 1799, his Fisherman’s Ring was left unbroken and, with a new inscription, served for his successor, Pius VII. When this latter pope fell into disgrace with Napoleon in 1809, because he refused to nullify the marriage of Jerome, Napoleon’s brother, to Miss Patterson, he was carried off from Rome to France, and obliged to surrender his Annulus Piscatoris to General Radet. Before relinquishing it, however, he took the precaution of having it cut down the middle. Later when he was restored to the Roman See, a substitute ring was made, as the original, given back by Louis XVIII after Napoleon’s downfall, could no longer be used because of its mutilation.[422] Besides the Fisherman’s Ring, the popes now have two others, the papal ring which they habitually wear, and the pontifical ring, which is only assumed for the pontifical ceremonies. The pontifical ring of Pius IX was worth more than $6,000. It is of gold, of remarkably fine workmanship, and is set with a magnificent oblong brilliant. This ring could be made smaller or larger at will, so that it might serve for future popes.[423]