The Letters to Izyaslav

Two writings transmitted under the name of St. Theodosius of the Kiev Caves are addressed to Prince Izyaslav Yaroslavich of Kiev: a reply on a question of fasting and observance, generally accepted as genuinely his, and the celebrated anti-Latin epistle (Slovo o vere khrest’yanskoi i o latinskoi, “On the Christian Faith and the Latin”), urging the prince to keep clear of Latin religious practice — whose attribution to this Theodosius is genuinely disputed in scholarship. This file describes both writings, then presents both sides of the attribution debate with named scholars, contextualizing the epistle’s polemic without endorsing or extending it.

Tradition: Russian Orthodox (Kievan; father of Russian cenobitic monasticism)

Theodosius and the Prince

Among the writings credited to St. Theodosius are pieces addressed not to the brethren of the Caves but to the ruling prince of Kiev, Izyaslav (Iziaslav) Yaroslavich, son of Yaroslav the Wise and grand prince of Kiev (with interruptions) in the third quarter of the eleventh century. That a hegumen of the Caves should write to the prince is wholly in keeping with what the sources show of Theodosius: Nestor’s Life portrays him as a counsellor of princes who did not hesitate to admonish the powerful, and his recorded relations with Izyaslav — including his rebuke of those who deposed Izyaslav and his loyalty to the lawful prince — make a correspondence between the two historically plausible (see Rebuking the Powerful). The question is not whether Theodosius and Izyaslav had dealings — they certainly did — but whether each of the two writings transmitted under his name and addressed to the prince is in fact his.

The two writings are of very different character and very different evidential standing. The first is a pastoral reply on a point of observance; the second is a confessional polemic against the Latin (Western, Roman) Church. They must be assessed separately, and scholarship does so.

The Reply on Fasting and Observance

The first writing is a response to a practical question of religious observance that Izyaslav had evidently put to the abbot — in the form preserved, a question bearing on fasting and the rules of food, such as whether it was permissible to slaughter animals for food on certain days, or how the fasting discipline of feast and fast days was to be reckoned. The piece is short and pastoral: an abbot answering a prince’s conscientious inquiry about the keeping of the Church’s fasting rule, in the same plain, practical register as the monastic instructions (Fedotov, The Russian Religious Mind I, 1946; see The Sermons and Instructions).

This reply is generally accepted as genuinely Theodosius’s. Its tone, its concern, and its occasion fit the profile of the historical abbot of the Caves: a holy man consulted by a devout prince on the observance of the Church’s discipline, answering within the ordinary competence of a hegumen. Nothing in it requires a setting later than Theodosius’s lifetime, and its authenticity is not the subject of the controversy that surrounds the other writing (Fedotov, The Russian Religious Mind I, 1946; Podskalsky, Christentum und theologische Literatur in der Kiever Rus’, 1982/2000). It belongs with the secure Theodosian core.

The Anti-Latin Epistle

The second writing is the famous one. It is a Slovo (word, discourse, epistle) conventionally titled in the manuscripts something like Slovo o vere khrest’yanskoi i o latinskoi — “On the Christian Faith and the Latin” — sometimes referred to in English as the epistle “on the faith of the Varangians” or “on the Latin faith.” Addressed to Prince Izyaslav, it urges him, and through him the Christians of Rus, to hold fast to the Orthodox faith and to keep clear of the religious practices of the Latins — the Western, Roman Christians, here sometimes named through the “Varangians” (the Scandinavians and Westerners present in Rus). The text enumerates Latin customs of which it disapproves and counsels the prince against intermingling in them, in the manner of the anti-Latin polemical literature that circulated in the Byzantine and Slavic world after the estrangement of the Eastern and Western Churches (Fedotov, The Russian Religious Mind I, 1946; Podskalsky, Christentum und theologische Literatur in der Kiever Rus’, 1982/2000).

It is essential, on this repository’s standard (METHODOLOGY §4), to be clear about whose voice the polemic is. The epistle’s hostility to Latin practice is the stance of the text, reported here as the text’s own, set in the historical climate that produced it — not a position this file adopts, extends, or commends. The eleventh and twelfth centuries saw a hardening of attitudes between the Greek East and the Latin West, conventionally dated from the mutual excommunications of 1054 and intensifying thereafter; a genre of Greek and then Slavic treatises cataloguing Latin “errors” of custom and discipline grew up in that climate, and the Slovo belongs, in form and content, to that genre (Podskalsky, Christentum und theologische Literatur in der Kiever Rus’, 1982/2000; Franklin & Shepard, The Emergence of Rus 750–1200, 1996). The historical and theological assessment of the East–West estrangement itself is a separate matter, treated in this repository’s core material on Holy Tradition and the history of the Church and not adjudicated here. The present file’s task is narrower: to report what the epistle is and to set out the genuine scholarly dispute over who wrote it.

The Attribution Problem

The attribution of the anti-Latin Slovo to St. Theodosius of the Caves is one of the recognized cruxes of early Kievan literary history. The dispute is genuine and unresolved, and it must be presented as such, with both positions named and neither asserted as settled.

[Disputed: the authorship of the anti-Latin epistle *Slovo o vere khrest'yanskoi i o latinskoi* addressed to Prince Izyaslav. Position A — authentic to St. Theodosius of the Kiev Caves (d. 1074): the epistle is transmitted under his name, and a body of scholarship (reflected in older Russian editions and in part in Fedotov, *The Russian Religious Mind* I, 1946, who treats anti-Latin polemic as part of the picture of the period) has accepted or entertained the traditional ascription to the Caves abbot, noting his documented relations with Izyaslav and his role as a counsellor of the prince. Position B — by a later "Theodosius the Greek" or otherwise misattributed: a substantial body of scholarship attributes the epistle instead to a different Theodosius — **Theodosius the Greek (Feodosii Grek)**, a twelfth-century translator-monk — or regards the ascription to the eleventh-century Caves abbot as a later misattribution. The grounds are (i) the anti-Latin polemical content, which fits the hardened post-1054 / twelfth-century climate better than the mid-eleventh-century setting of the Caves abbot; (ii) considerations of style and language; and (iii) the manuscript context in which the piece travels. This case is set out in the standard handbook, Podskalsky, *Christentum und theologische Literatur in der Kiever Rus'* (1982/2000), and is consonant with the source-critical treatment of early Rus literature in Franklin, *Writing, Society and Culture in Early Rus* (2002), and Franklin & Shepard, *The Emergence of Rus 750–1200* (1996); Fedotov, *The Russian Religious Mind* I (1946), likewise registers the authenticity question as open rather than closed. The question is not resolved here.]

The two named candidates focus the issue. St. Theodosius of the Caves died in 1074, only twenty years after the events of 1054, at a moment when the consciousness of a definitive East–West rupture was still forming and when, in Rus, relations with Latin Christians (through dynastic marriages and the Varangian presence) remained close and largely untroubled. Theodosius the Greek (Feodosii Grek) was a translator-monk active in the twelfth century — a period in which anti-Latin polemic was fully developed and circulated freely in the Slavic world. The coincidence of name is precisely what would generate a misattribution: a polemical Slovo by “Theodosius” could readily be drawn, in the manuscript tradition, under the gravitational pull of the far more famous Theodosius of the Caves (Podskalsky, Christentum und theologische Literatur in der Kiever Rus’, 1982/2000; Franklin, Writing, Society and Culture in Early Rus, 2002).

The arguments for the later attribution are cumulative rather than demonstrative. Content: the developed, systematic hostility to Latin custom reads more naturally in the twelfth-century climate than in the 1060s–1070s; an epistle so framed sits uneasily in the lifetime of the Caves abbot. Style and language: features of the Slovo‘s idiom and rhetoric have been read as later than the plain instructional prose of the secure Theodosian instructions (see The Sermons and Instructions). Manuscript context: the company the piece keeps in the collections that transmit it bears on the ascription. None of these by itself is decisive, and defenders of the traditional attribution can answer each — but together they have persuaded a substantial part of the scholarship to set the epistle aside from the genuine Caves corpus, or at least to suspend judgment (Podskalsky, Christentum und theologische Literatur in der Kiever Rus’, 1982/2000; Fedotov, The Russian Religious Mind I, 1946). The honest statement of the present state of the question is that the anti-Latin Slovo is of contested authorship, with weighty scholarly opinion against its ascription to St. Theodosius of the Caves, but without a consensus so complete that the traditional attribution can simply be declared an error.

Why It Matters

The stakes of the attribution are not merely antiquarian. If the anti-Latin Slovo is by the Caves abbot, then the father of Russian cenobitic monasticism is also an early and forceful voice of anti-Latin confessional polemic in Rus, and the kenotic, humble Theodosius of the instructions and the Life must be held together with a sharply polemical author. If, as much scholarship holds, the Slovo belongs to a later Theodosius, then the eleventh-century abbot’s image is freed of it, and the epistle becomes evidence instead for the twelfth-century reception of Byzantine anti-Latin literature in Rus. The portrait of Theodosius drawn from the secure writings — the instructions and the reply on fasting — is in either case dominated by the monastic and pastoral, not the polemical; the Slovo is the one place where that portrait is genuinely in question (Fedotov, The Russian Religious Mind I, 1946; Podskalsky, Christentum und theologische Literatur in der Kiever Rus’, 1982/2000).

For an Orthodox reader the right posture is the source-critical one this repository follows (METHODOLOGY §3.5, §4): to report the epistle as the text it is, to name its stance as the text’s own and set it in its historical climate, to refrain from anti-Latin editorializing of one’s own, and to leave the disputed authorship open under named scholarship rather than resolve it by assertion.

The Manuscript Tradition

As with the monastic instructions, neither writing addressed to Izyaslav survives in an eleventh-century copy. Both reach us through later Old Russian manuscripts and miscellanies (sborniki) and through the manuscript redactions associated with the Caves and the wider Slavic transmission of devotional and polemical texts (Podskalsky, Christentum und theologische Literatur in der Kiever Rus’, 1982/2000; Franklin, Writing, Society and Culture in Early Rus, 2002). The gap between the supposed date of composition and the earliest surviving witnesses is exactly the circumstance that makes the attribution arguable in the first place: a text first attested in copies generations younger than its named author cannot have its authorship assumed, and must be argued on internal and contextual grounds — which is why the reply on fasting (fitting the eleventh-century setting) is accepted while the anti-Latin Slovo (better fitting a later one) is contested. English-language readers approach this material chiefly through Fedotov’s A Treasury of Russian Spirituality (1948) and The Russian Religious Mind I (1946) for discussion, with Podskalsky (1982/2000) as the technical handbook on the attribution.

References

Fedotov, G. P. The Russian Religious Mind, Vol. 1: Kievan Christianity, the Tenth to the Thirteenth Centuries. Cambridge, MA: Harvard University Press, 1946. (Discusses the writings to Izyaslav, the anti-Latin epistle, and the authenticity question.)
Fedotov, G. P., ed. A Treasury of Russian Spirituality. New York: Sheed & Ward, 1948. (English discussion and selection of Theodosius material.)
Podskalsky, Gerhard. Christentum und theologische Literatur in der Kiever Rus’ (988–1237). Munich: C. H. Beck, 1982; 2nd ed. 2000. (The standard handbook; treats the authenticity of the anti-Latin epistle and the case for a later “Theodosius the Greek” / misattribution.)
Franklin, Simon. Writing, Society and Culture in Early Rus, c. 950–1300. Cambridge: Cambridge University Press, 2002. (Early Rus literature, transmission, and the source-critical assessment of authorship.)
Franklin, Simon, and Jonathan Shepard. The Emergence of Rus 750–1200. London: Longman, 1996. (The historical climate of East–West relations in eleventh- and twelfth-century Rus.)
Heppell, Muriel, trans. The Paterik of the Kievan Caves Monastery. Harvard Library of Early Ukrainian Literature, English Translations vol. 1. Cambridge, MA: Harvard University Press, 1989. (The Caves manuscript tradition and its Theodosian material.)