A sky and fire god known only from a single learned chronicle gloss that equates him with the Greek smith-god Hephaestus and calls the sun-god Dazhbog his son.
Svarog is not among Vladimir's 980 idols. He appears in a gloss inserted into the Hypatian Chronicle's Slavonic translation of John Malalas's Chronographia, under the year 1114, where the Greek smith-god Hephaestus is rendered as Svarog, and the sun (identified as Dazhbog) is called "Svarog's son" who "reigned after him." This is a bookish, learned aside by a Christian scribe explaining Greek mythology through a Slavic name he expected his audience to recognize — most historians treat it as evidence for the name and a rough sky/fire association, not as direct testimony to a living cult with its own myths.
A name, not a narrative
Beyond that single gloss, nothing about Svarog's worship, temples, or festivals survives. His name recurs as an element in Svarozhich ("little Svarog" or "son of Svarog"), the West Slavic fire-and-war god attested independently by Thietmar of Merseburg at Riedegost — whether that patronymic reflects a genuine East-West Slavic theological link, or simply a shared root word for "bright/heaven," is debated rather than settled.
Source Notes
These records lack edition and translator details. Their wording has not been verified as a direct quotation.
And after him [Svarog] reigned his son, whose name is the Sun, whom they call Dazhbog [...] Svarog, whom the Egyptians call Hephaestus.
Worship & Cult
How Svarog was venerated in ancient times
Worship Practices
No medieval source records a temple, festival, or oath sworn to Svarog directly; everything known about him comes from the single 1114 chronicle gloss identifying him with Hephaestus and naming Dazhbog as his son.
