This is among the most substantively primacy-rich of the Ennodian letters preserved in the Symmachus corpus. Where Letters 18, 19, 20, and 21 are personal commendations that operate within the framework of papal pastoral care without articulating it directly, Letter 22 opens with one of the more striking primacy formulations of the period: the Apostolic See is moderated by Symmachus’s crown’s care, and the summit of the heavenly empire is governed by him. The reader should attend to how this is being said.

Dum sedem apostolicam coronae vestrae cura moderatur et coelestis imperii apicem regitis — “While the apostolic see is moderated by the care of Your Crown, and the summit of the heavenly empire is governed [by you].” The phrase coelestis imperii apicem (“the summit of the heavenly empire”) is the line that deserves attention. Ennodius is articulating a structural principle: there is one universal heavenly empire, and its apex (summit, peak, highest point) is the Apostolic See. The framing presents Roman primacy not as administrative coordination of churches but as the highest point of a transcendent imperium that mirrors and surpasses the political imperium of the late-antique state. In the historical context of 506–514, this is being said when the political imperium had its administrative center at Constantinople and Rome was under Theodoric the Ostrogoth’s overlordship; the political summit of the empire was elsewhere. Ennodius is naming the apostolic see as the summit of a different and higher imperium — the heavenly one — in which the Roman pontiff holds the office that the eastern emperor holds in the political order, but transcendently.

The line should be read as continuous with the patristic tradition that the corpus repeatedly witnesses. The Roman pontiff is not the head of a federation of equally-sovereign churches; he is the apex of a single heavenly imperium. The corpus’s earlier articulations of the same structural principle include Leo’s principaliter in beatissimo Petro (Letter X §1), Symmachus’s articulations of the principatum of the Apostolic See over the universal episcopate (Letter 16 §3, in the Caesarius libellus), and Gelasius’s Duo Sunt formulation of the two powers. Ennodius’s contribution is the imperial-transcendent register: he names the apostolic office in the vocabulary of imperium and apex, treating the pope’s authority as the spiritual analogue of the highest political office.

Equally significant is the second paragraph’s framing of Rome itself. Quem sollicitudo liberalis Romam coegit expetere — “[Parthenius] whom the solicitude for liberal Rome compelled to seek [her] out.” Thiel’s footnote 1 to §2 records: “Hoc nomine pontificem universalem honorat, jam tunc inter temporum turbines fere unicum fluctuantium populorum et studiorum liberalium refugium” — “By this name [Roma] he honors the universal pontiff, since at that time amid the storms of the times Rome was almost the unique refuge of fluctuating peoples and of liberal studies.” The reader should weigh what this observation implies. Rome was the singular refuge for liberal studies in the early sixth century not because of its political power (its political power was diminished and contested) but because of the apostolic office at its center. The pope’s care for the Western Catholic faithful made Rome a center of letters, scholarship, and youth formation in a period when the political and educational systems of the late Roman world were fragmenting around it. This is an aspect of the Roman primacy the corpus consistently witnesses but rarely articulates as directly as Thiel’s editorial note here: the universal episcopate’s exercise extended into the cultural and educational preservation of Latin Christian civilization across the political turbulence of the fifth and sixth centuries.

The reader interested in how Ennodius understood his own ecclesiastical office and its relation to Rome will note the framing of Parthenius as a “hostage” (obsides) by whom Ennodius’s qualities of merit are guaranteed at the papal court. The image is from the late-antique diplomatic vocabulary: a hostage is the assurance of a vassal’s loyalty to a higher authority. Ennodius treats his own relationship to the apostolic court in this vocabulary, presenting his nephew’s residence at Rome as the substantive bond by which Ennodius’s continuing fidelity to Symmachus is publicly attested. The framing is not merely rhetorical; it reflects how Western ecclesiastics in this period understood their relationship to Rome. The bond was substantive, expressed through correspondence, hostages, services, and personal relationships; the papacy was treated as the sovereign center of an ecclesiastical-cultural order whose vassals owed fidelity in the language of the late-antique imperial vocabulary.

For the reader who is following the corpus arc, Letter 22 is one of the small but important documentary witnesses to a structural feature of Roman primacy that the popes themselves rarely articulated in this register: the framing of the Apostolic See as the summit of the heavenly empire, with universal solicitude reaching into the cultural and educational preservation of Western Christendom. The Roman pontiff was not merely a doctrinal arbiter or an appellate court but the operative center of an ecclesiastical-cultural order whose extent reached from senatorial children’s education to the most exalted articulations of universal jurisdiction. Ennodius’s letter, addressed to Symmachus a decade after the resolution of the Laurentian Schism, presents this framework as so obvious that it requires no defense: it is simply the operative reality within which a Western deacon commends his nephew to the apostolic court.