Section 03: The Tome of Leo
The doctrinal heart of Leo’s legacy: the Tome (Ep. 28) sent to Flavian of Constantinople on 13 June 449 against the Eutychian error, with its confession of two complete and undiminished natures in the one person of the Word — and the violent interlude of the “Robber Synod” of 449 that suppressed it, killed Flavian, and set Leo on the road to a true council.
Tradition: Pan-Orthodox (Church Father / Latin)
Contents
| File | Title | Scope |
|---|---|---|
| the-tome-to-flavian.md | The Tome to Flavian | Flagship. The Eutychian crisis and Flavian’s Home Synod of 448; the writing of the Tome (Ep. 28, 13 June 449); the exposition of its two-natures Christology, with the hinge sentence — “each form does what is proper to it in communion with the other” — quoted and unpacked; the persona/two-natures grammar; the Western sources behind it; its convergence with and difference from Cyril’s vocabulary. |
| the-latrocinium-and-the-road-to-chalcedon.md | The Latrocinium and the Road to Chalcedon | The Second Council of Ephesus (August 449), Dioscorus presiding, which suppressed the Tome and deposed Flavian; Flavian’s death from the council’s violence (mechanism flagged as disputed); Leo’s “non iudicium sed latrocinium” verdict (Ep. 95); the appeal to a true council; the death of Theodosius II (450) and the accession of Marcian and Pulcheria that opened the road to Chalcedon. |
How to Use
- Read The Tome to Flavian first: it is the flagship doctrinal exposition and the document on which Sections 04 and 05 turn.
- Then read The Latrocinium and the Road to Chalcedon for the political and ecclesial drama that carried the Tome from suppression to vindication.
Cross-References
- The Council and the Tome — where the Tome was read and examined against Cyril.
- The Non-Chalcedonian Rupture — the tradition that rejected the Tome as crypto-Nestorian.
- The Incarnation and the Two Natures — the soteriology that grounds the Tome’s grammar.
- St. Cyril of Alexandria — the Father against whom the Tome was measured.
- Ecumenical Councils — Chalcedon in the conciliar framework.
References
Full citations are at the foot of each file. The Tome is cited as Leo, Ep. 28 (PL 54:755–782; trans. Feltoe, NPNF 2nd ser. vol. 12; Hunt, FOTC 34); the council acta from ACO tom. II (ed. Schwartz); the secondary scholarship principally Wessel, Neil, Grillmeier, and Price & Gaddis.