From Governor to Bishop (c. 339 – 374)

Ambrose was born at Trier into the senatorial-administrative aristocracy, educated at Rome, and was serving as the imperial governor (consularis) of Aemilia-Liguria at Milan when, in 374, he went to the cathedral to keep the peace at a contested episcopal election and was instead acclaimed bishop himself — while still an unbaptized catechumen. He fled, was found, and within roughly a week was baptized, passed through the clerical grades, and consecrated bishop of Milan on December 7, 374. This file sets out the chronology, the legend of the child’s voice, and the scholarly debate over how much of his celebrated reluctance was genuine and how much a conventional or engineered performance.

Tradition: Pan-Orthodox (Church Father / Latin)

Birth at Trier

Ambrose was born at Trier (Augusta Treverorum), the great imperial city on the Moselle that served as the administrative capital of the praetorian prefecture of Gaul. His father, traditionally named Aurelius Ambrosius, held — or had held — the office of praetorian prefect of Gaul, one of the highest civil posts in the Western empire, which placed the family squarely within the Christian senatorial aristocracy (Paulinus of Milan, Vita Ambrosii 3–4; McLynn, Ambrose of Milan, 31–35).

The date of his birth is not securely fixed. [Disputed: the conventional date is c. 339, derived from Ambrose’s own statement in a letter of 392 that he was then fifty-three, which back-calculates to 339 (Ambrose, Ep. 59 [Maur. 49]; so the standard handbooks and Cvetković); many older and popular references give 340; and the documentary evidence connecting his father to a datable imperial constitution has been read to allow a wider range of 337–340, the uncertainty turning on the father’s identity and which office-holder a given document names (McLynn, Ambrose of Milan, 31–36, who sifts the evidence; Paulinus, Vita Ambrosii 3, offers only the bees legend, not a date).] This guide follows the most common scholarly date of c. 339 while noting the range.

The family was Christian. A celebrated legend, the earliest written form of which is in Paulinus, attaches to the infancy: a swarm of bees is said to have settled on the sleeping baby’s face and mouth, leaving honey, after which they flew off so high they could not be seen; his father took it as an omen of the child’s future “honeyed” eloquence and said, “If this little child shall live, he will be something great” (Paulinus, Vita Ambrosii 3 — reported as the Vita’s account, not as established fact). The story would give Ambrose his medieval epithet Doctor mellifluus, “the honey-tongued Doctor,” and the beehive as his emblem (see Doctor of the Church).

Rome, the Bar, and the Bench

After his father’s death the family removed to Rome, where Ambrose received the education proper to his class: literature, rhetoric, and law, the training that pointed toward a public career rather than the Church (Paulinus, Vita Ambrosii 5; Ramsey, Ambrose, 18–20). His Greek — uncommon among Latin contemporaries — he acquired here or soon after; it would later let him read and adapt Basil, Athanasius, Origen, Philo, and Didymus at first hand (see The Man and the See).

He practiced as an advocate (causidicus), then entered the imperial administration on the staff of Sextus Claudius Petronius Probus, the powerful praetorian prefect of Italy, as a judicial councillor (Paulinus, Vita Ambrosii 5; McLynn, Ambrose of Milan, 36–43). Around 372–373 he was appointed consularis — civil governor — of the province of Aemilia-Liguria, whose seat was at Milan, then the working capital of the Western emperor (Paulinus, Vita Ambrosii 5; Dudden, Life and Times, 1:60–66). Probus is said to have sent him off with words that proved prophetic: “Go, conduct yourself not as a judge, but as a bishop” (Paulinus, Vita Ambrosii 8 — reported by the Vita). At the moment of the election Ambrose was a man of about thirty-five, a senior Roman official of conspicuous integrity, and — like very many of his class and century — a baptized-deferring catechumen who had not yet received baptism.

The Death of Auxentius and the Divided City

For some twenty years Milan had been held by Auxentius, a Homoian (“Arian”) bishop installed under the patronage of the emperor Constantius II, who had displaced the exiled Nicene Dionysius. Auxentius was a capable defender of the imperially favored, anti-Nicene theology, and under him Milan had become a Western stronghold of the party that refused the Council of Nicaea’s homoousios (see The Western Anti-Arian Struggle). When Auxentius died — in 373 or early 374 — the succession was fiercely contested between the Nicene and the Homoian congregations, each determined to seat its own man, and the dispute threatened to spill into violence (Rufinus, Ecclesiastical History 2.11; Paulinus, Vita Ambrosii 6; McLynn, Ambrose of Milan, 1–13, 44–52).

It was the governor’s business to keep public order. Ambrose went in person to the basilica where the people were assembled, and addressed them, urging calm and a peaceable election (Paulinus, Vita Ambrosii 6; Rufinus, HE 2.11).

“Ambrose Bishop!”

What happened next is the founding scene of his life, and the sources tell it as a miracle. As Ambrose spoke, a voice — said to be that of a child — cried out, Ambrosius episcopus!, “Ambrose bishop!”, and the whole assembly, Nicene and Homoian alike, took up the cry and demanded him (Paulinus, Vita Ambrosii 6; Rufinus, HE 2.11; Sozomen, HE 6.24). [Disputed: the child’s-voice acclamation is reported by the early sources as a providential sign and is treated by critical historians as a hagiographic embellishment rather than bedrock fact (McLynn, Ambrose of Milan, 1–13, who calls the whole sequence one that “it is difficult to make historical sense of”); what is not in doubt is that a deadlocked, bitterly divided city suddenly united on the catechumen-governor.]

The astonishing thing is the unanimity across the doctrinal divide. That both parties could accept Ambrose is the historical core of the story, and scholars read it in two ways. [Disputed: McLynn (Ambrose of Milan, 44–52) treats the election as best explained by political management — Ambrose’s reluctance a conventional “rite of refusal,” and his acceptability perhaps engineered by his superiors — while Daniel H. Williams (Ambrose of Milan and the End of the Nicene-Arian Conflicts, 113–127) cautions that a purely reductive reading fails to explain the genuine cross-party concord, and that Ambrose’s standing as a fair-minded outsider acceptable to both sides may be real rather than staged.]

Flight and Consecration

Ambrose, by every account, resisted. He was a catechumen with no theological training and a public career before him, and the canons forbade the consecration of the unbaptized and the neophyte (cf. 1 Timothy 3:6). Paulinus reports that he tried to deflect the acclamation by unbecoming conduct, that he attempted to flee the city by night and lost his way, and that he hid in the house of a senator — until the matter was referred to the emperor Valentinian I, who was pleased that his governors were thought worthy of bishoprics and gave his consent, at which point Ambrose submitted (Paulinus, Vita Ambrosii 6–9; Rufinus, HE 2.11). Whether the flight was sincere terror, the expected ritual self-effacement of a reluctant candidate, or political theater, the sources do not let us finally decide (see the disputed note above).

The imperial confirmation was decisive. That the matter was referred to Valentinian I at all shows how thoroughly the seating of a bishop in an imperial capital had become an affair of state: a serving consularis could not abandon his governorship for a cathedra without the emperor’s leave, and the appointment of so senior an official to so strategic a see touched the court’s interests directly. Valentinian’s reaction was satisfaction rather than displeasure — he was gratified that the men he sent out as judges were judged worthy of the priesthood, and gave his consent (Paulinus, Vita Ambrosii 8; Rufinus, HE 2.11; McLynn, Ambrose of Milan, 44–52). The pleasure was not disinterested. Valentinian was a Western, broadly Nicene-tolerant ruler who kept a studied distance from the doctrinal quarrels his brother Valens pressed in the East; a respected administrator of his own choosing in the Milanese see promised a bishop who would keep order and owe something to the throne. The episode is the first instance of a pattern that would shape Ambrose’s whole career: the bishop of Milan and the imperial power were bound together from the moment of his election, and the same proximity that made his elevation an imperial concern would later make his confrontations with emperors possible (see Ambrose and the Emperors).

He was then baptized — by a Catholic (Nicene) bishop, the sources are careful to note, not a Homoian — and over the following days passed in rapid succession through the grades of the clergy, being consecrated bishop of Milan on December 7, 374 (Paulinus, Vita Ambrosii 9; the date is the one kept as his feast in East and West; see Doctor of the Church). [Disputed: 7 December 374 is the standard and consensus date; a minority dating, turning on exactly when Auxentius died and how the week of successive grades is counted, places the consecration in 373 (discussed in McLynn, Ambrose of Milan, 44–52, who upholds 374).] The whole passage from layman to bishop occupied, by the tradition, about a week.

The canonical irregularity was real and was felt. That a man could be carried from the baptismal font to the bishop’s throne in eight days violated the ordinary order of the Church, and Ambrose himself returned to it again and again with a convert’s astonishment, most famously in De Officiis, where he confesses that he was “snatched into the priesthood from the seat of magistrates and the robes of office” and had to learn and teach at the same time, “since I had no leisure to learn before” (Ambrose, De Officiis 1.1.4 [PL 16:25]; trans. NPNF II/10). The lawyer-governor became, against his will and against the canons, the most consequential bishop of the Latin fourth century.

A Catholic Font, Not a Homoian One

One detail of the consecration narrative carries more theological weight than its brevity suggests: the sources are careful to record that Ambrose was baptized by a Catholic — that is, Nicene — bishop, and not by a Homoian (Paulinus, Vita Ambrosii 9; Rufinus, HE 2.11). In a city whose church establishment had been Homoian for two decades under Auxentius, the choice of minister was a confessional act. Had the catechumen-governor received baptism at Homoian hands, his whole episcopate would have begun under a cloud, and his later campaign to make Milan durably Nicene would have been compromised at its root (see The Western Anti-Arian Struggle). The early biographers preserved the point, and modern scholarship reads it as a deliberate signal that the bishop the divided city had acclaimed would stand, unambiguously, on the side of Nicaea (Williams, Ambrose of Milan, 113–127; McLynn, Ambrose of Milan, 44–52). The unanimity of the acclamation had crossed the doctrinal divide; the baptism did not.

A Fourth-Century Pattern — and the Canons Against It

Ambrose’s elevation was extraordinary, but it was not unique. The rapid promotion of distinguished laymen — often unbaptized catechumens or men only recently baptized, and almost always men of administrative or rhetorical eminence — to great sees was a recognizable phenomenon of the fourth-century Church, as a newly established faith reached into the governing class for leaders of standing. Nectarius of Constantinople, an unbaptized senator and praetor, was baptized and consecrated to the imperial capital in 381 at the close of the very council that affirmed Nicaea; Synesius of Cyrene, a philosopher and landowner, was raised to Ptolemais; and in the next generation Augustine himself would be hurried through the grades at Hippo. The Church’s leaders valued the connections, learning, and gravitas such men brought, even as the practice strained the order of ministry (McLynn, Ambrose of Milan, 44–52; Williams, Ambrose of Milan, 113–127).

The canons set themselves squarely against it. The Pauline rule was the root: a bishop must be “not a neophyte (neophytum), lest being lifted up with pride he fall into the condemnation of the devil” (1 Timothy 3:6), the very text Ambrose’s own reluctance invoked. The Council of Nicaea (325), canon 2, made the principle conciliar law, complaining that “many things contrary to the ecclesiastical canon” had been done under pressure, “so that men just converted from heathenism to the faith, and who have been instructed but a little while, are straightway brought to the spiritual laver, and as soon as they have been baptized, are advanced to the episcopate or the presbyterate”; it required first “a sufficient time of probation” and cited 1 Timothy 3:6 (Council of Nicaea, canon 2; trans. NPNF II/14). Ambrose’s consecration, eight days from the font, was thus a textbook breach of a canon barely fifty years old — done, exactly as Nicaea had foreseen, “from necessity or under pressure” of a deadlocked and dangerous election. The Church accepted the breach because the man and the moment seemed to warrant it; but the irregularity is the reason Ambrose’s own writings keep circling back to his unpreparedness, and why his case became a standing example of the exception the canons admitted only with reluctance.

“I Had No Leisure to Learn”

Ambrose did not pass over his canonical anomaly in embarrassed silence; he made it a recurring theme of his self-presentation, turning the convert’s astonishment into a pastoral and rhetorical instrument. The De Officiis admission quoted above — “snatched to the priesthood from the seat of magistrates,” teaching what he had not yet learnt — is not false modesty but the literal record of a man catechized, baptized, ordained, and consecrated inside a single week, who studied Scripture and the Greek fathers under the priest Simplicianus precisely to overtake an office he already held (see The Man and the See). The note recurs in the letters: writing to the church of Vercelli on the choosing of a bishop, he reflects again on the burden of an office that finds a man unready and presses learning and teaching upon him together (Ambrose, Ep. extra coll. 14 [Maur. 63]; trans. NPNF II/10). The accent everywhere is the same — the episcopate was laid on him from outside, against his protest and against the rule, and the only honest course was to grow into it in public. That candor is itself part of why the tradition forgave the irregularity and read the whole improbable sequence, from the governor’s chair to the consecrating hands, as the working of providence rather than the failure of discipline (Paulinus, Vita Ambrosii 6–9; see Doctor of the Church).

What He Did First

Ambrose marked the change at once and decisively. He gave his gold and silver to the Church and the poor, settled his landed estate so as to keep nothing for himself beyond a provision for his sister, and committed his affairs to his brother Satyrus so as to be free for the episcopate (Paulinus, Vita Ambrosii 9, 38). And he set himself to study — under the priest Simplicianus, who had instructed him and who would one day instruct Augustine — reading the Scriptures and the Greek fathers so as to overtake the learning his sudden elevation had outrun (Paulinus, Vita Ambrosii 9; Augustine, Confessions 8.2; see The Man and the See). Within a few years the catechumen-governor would be writing De Fide for an emperor and presiding, in effect, over a council (see The Western Anti-Arian Struggle).

References

Paulinus of Milan. Vita Sancti Ambrosii (Life of St. Ambrose), c. 422. The earliest Life, written at Augustine’s suggestion; source of the bees legend, the election narrative, and the early biographical tradition. (PL 14.)
Ambrose of Milan. De Officiis 1.1.4 [PL 16:25]; trans. NPNF II/10 (de Romestin); crit. ed. Davidson (OECS) and Testard (CCSL 15). On being “snatched into the priesthood.”
Ambrose of Milan. Epistula 59 [Maurist 49]; trans. NPNF II/10. The “fifty-three years” statement underlying the 339 birth date.
Ambrose of Milan. Epistula extra collectionem 14 [Maurist 63], to the church of Vercelli; trans. NPNF II/10. On the burden of an office that presses learning and teaching together.
Council of Nicaea (325), canon 2; trans. NPNF II/14 (Percival, The Seven Ecumenical Councils). Against the rapid promotion of neophytes and the newly baptized to the priesthood and episcopate, citing 1 Timothy 3:6.
Rufinus of Aquileia. Ecclesiastical History 2.11; trans. Amidon (Oxford, 1997). On Auxentius’s death and the election.
Sozomen. Ecclesiastical History 6.24; trans. NPNF II/2. On the acclamation.
McLynn, Neil B. Ambrose of Milan: Church and Court in a Christian Capital. Berkeley: University of California Press, 1994, esp. 1–52. The standard critical biography; the revisionist reading of the election; the birth-date evidence; upholds 374.
Williams, Daniel H. Ambrose of Milan and the End of the Nicene-Arian Conflicts. Oxford: Clarendon Press, 1995, esp. 104–127. Against a purely reductive reading of the election.
Ramsey, Boniface. Ambrose. London: Routledge, 1997 (Early Church Fathers), 18–24. Accessible account of the early life.
Dudden, F. Homes. The Life and Times of St. Ambrose. 2 vols. Oxford: Clarendon Press, 1935, 1:1–110. The older standard biography.