Nessus

Nessus is a centaur from classical mythology who serves as a guide and ferryman in the Seventh Circle of Hell, specifically across the river of boiling blood, Phlegethon, where the violent against their neighbors are punished. His role is to carry Dante and Virgil across the river and to identify the sinners immersed in the blood according to the degree of their guilt. Nessus is one of three centaurs mentioned by name in this episode, alongside Chiron and Pholus, and his presence underscores the poem's integration of classical figures into its Christian moral framework.

Identity and Background

Nessus is introduced by Virgil as the centaur "who perished for the lovely Dejanira, / And for himself, himself did vengeance take" . This refers to the myth in which Nessus attempted to abduct Dejanira, the wife of Heracles, and was killed by a poisoned arrow. Before dying, Nessus gave Dejanira a cloak soaked in his blood, which he falsely claimed would preserve Heracles' love; when Heracles wore it, the poison killed him, thus fulfilling Nessus's revenge. In Dante's Hell, Nessus is not punished for his own sins but serves as a guardian and executor of divine justice, a common fate for mythological figures in the Inferno.

Role in the Seventh Circle

When Dante and Virgil descend into the Seventh Circle, they encounter the river Phlegethon, a boiling stream of blood that punishes those who committed violence against their neighbors. The centaurs patrol the banks, armed with bows and arrows, and shoot any sinner who emerges from the blood beyond the depth allotted to their crime. Virgil identifies Nessus as the one who will guide them: "Upon his right breast Chiron wheeled about, / And said to Nessus: 'Turn and do thou guide them, / And warn aside, if other band may meet you'" . Nessus then leads the poets along the bank, pointing out the various tyrants and murderers immersed in the blood.

Key Actions and Objectives

Nessus's primary function is to serve as a guide and informant. As he walks alongside the river, he names the sinners: "Tyrants are these, / Who dealt in bloodshed and in pillaging. / Here they lament their pitiless mischiefs; here / Is Alexander, and fierce Dionysius / Who upon Sicily brought dolorous years" . He also identifies Ezzelino III da Romano, Obizzo d'Este, and others, including a shade who "cleft asunder in God's bosom / The heart that still upon the Thames is honoured" , a reference to Simon de Montfort. Nessus explains that the depth of the blood corresponds to the severity of the sin: those who committed greater violence are submerged deeper, while lesser offenders are only ankle-deep. He notes that the river grows shallower as it progresses, until it reaches the point where tyranny is punished most severely.

Relationships and Conflict

Nessus acts under the authority of Chiron, the leader of the centaurs, who assigns him the task of guiding the poets. There is no conflict between them; rather, Nessus obeys Chiron's command without hesitation. His relationship with Virgil is cooperative, as Virgil introduces him to Dante and trusts his guidance. Nessus does not interact with the sinners he points out, except to describe their crimes and punishments. His role is purely observational and instructional, serving the poem's didactic purpose.

Change and Ending

Nessus's role is confined to the Seventh Circle. After leading Dante and Virgil across the ford of Phlegethon, he departs: "Then back he turned, and passed again the ford" . He does not appear again in the poem. His departure marks the end of the centaurs' involvement in the journey, and the poets proceed into the Wood of the Suicides. Nessus's brief but significant appearance reinforces the poem's use of classical mythology to illustrate divine justice, and his knowledge of the sinners' identities provides historical and moral context for the punishments.

Narrative Role and Evaluation

Nessus functions as a minor but effective guide within the Seventh Circle, embodying the poem's method of using mythological figures as agents of divine retribution. His presence connects Dante's Christian Hell to classical traditions, while his detailed descriptions of the sinners ground the allegory in historical and political reality. As a character, Nessus is flat in the Forsterian sense: he is defined by a single purpose—to guide and inform—and does not undergo any development or surprise. However, his role is essential for the reader's understanding of the contrapasso in this circle, and his mythological backstory adds depth to the poem's moral landscape.