The prophecy of Alfonso's sword

The prophecy of Alfonso's sword is a verse inscribed on an enormous sabre that Frederic discovers after a dream directs him to a wood near Joppa. It links a helmet matching the weapon to danger for his daughter Isabella, names Alfonso’s blood as her sole deliverance, and promises rest for a troubled prince’s shade. By making a hidden object, a threatened daughter, and the fate of a ruling house part of one cryptic sentence, the prophecy turns Frederic’s private quest into a warning about Otranto’s dynastic future.

Dream and Search

While held prisoner by the infidels, Frederic dreamed that his daughter, from whom he had received no news since his captivity, was detained in a castle and faced dreadful misfortunes. The dream instructed him that, if freed, he should go to a wood near Joppa to learn more. His alarm made his chains seem more grievous, but news that the confederate princes warring in Palestine had paid his ransom gave him the means to follow the direction. He set out for the wood marked in the dream.

The search did not yield an immediate answer. Frederic and his attendants wandered in the forest for three days without seeing anyone. On the third evening they found a cell and a venerable hermit near death. Their aid briefly restored the hermit to speech, allowing him to disclose the secret he said he had been forbidden to reveal until his deathbed.

The Hermit's Revelation and the Sword

The hermit traced the secret back more than fifty years, to the time when he had witnessed his country fall to unbelievers and withdrawn into solitude. He said that Saint Nicholas had appeared to him and entrusted him with a revelation to keep until his final hour. Naming Frederic and his companions as the warriors chosen to receive it, he instructed them to bury his body and then dig beneath the seventh tree on the left of his cave. He died before explaining what they would find.

At daybreak, after committing the hermit’s remains to earth, Frederic’s party dug where directed. At a depth of about six feet they uncovered an enormous sabre, the same weapon later displayed in the castle court. Its blade had been partly out of its scabbard when found; Frederic explained that it had since been closed again while the party removed it. The writing on the blade supplied the message the hermit had concealed.

The Inscription and Its Meaning

Frederic hesitated before repeating the inscription to Hippolita. He said he respected her sex and rank and did not wish to offend her with words injurious to what she held dear. Hippolita trembled, understanding that Frederic might be destined to bring about the fate threatening her house. She looked anxiously at Matilda, and a silent tear fell before she recovered herself and urged him to continue, submitting the matter to heaven’s will.

Frederic then recited the four-line prophecy: “Where’er a casque that suits this sword is found, / With perils is thy daughter compass’d round; / Alfonso’s blood alone can save the maid, / And quiet a long restless Prince’s shade.” The wording establishes a chain of conditions and consequences: the matching casque signals danger to Frederic’s daughter; Alfonso’s blood is the only means of saving her; and that rescue will quiet a prince’s restless shade. The inscription does not explain how these conditions will be fulfilled, leaving the discovered weapon and its counterpart as material signs of an unresolved supernatural design.

Reception and Narrative Stakes

The prophecy’s first immediate effect is visible in Hippolita’s response. She connects Frederic’s arrival and the message to the danger facing her family, while her glance toward Matilda gives the warning a personal focus. Frederic, in turn, is moved by the mother and daughter’s tender regard for one another and repeats the verse in a faltering, low voice, despite his reluctance to alarm them further.

Theodore challenges the solemnity surrounding the lines, asking what in them should affect the two princesses and dismissing the delicacy with which Frederic had introduced them. Frederic rebukes him for rudeness. This contrast sets the prophecy’s grave, devotional reception against Theodore’s impatience, without resolving the riddle for those present. Its force lies in what it joins but does not yet clarify: Frederic’s dream of Isabella in peril, an enormous buried weapon, Alfonso’s blood, and the restless shade whose peace depends on the prophecy’s fulfilment.