Furthermore, this passage has raised quite a few theories about family relations between Slavic gods. If we assume that indeed Svarog was believed to be Dažbog's father, the question arises of his relation with Svarožič, another deity who is mentioned as a god of fire and war in several other medieval documents describing the pagan beliefs of Slavs. Svarožič is simply a diminutive of Svarog's name, i.e., "little Svarog", which implicates he was considered a child of Svarog. Vyacheslav Ivanov and Vladimir Toporov proposed a reconstruction of this mythical genealogy that Svarog, a deity of fire and forge similar to the Greek Hephaestus, had two sons; Dažbog, who represented the fire in the sky (i.e., the Sun), and Svarožič, who symbolised the flame on earth, in the forge. Henryk Łowmiański, however, theorised that Svarog was a Slavic sky god and personification of daylight sky itself, possibly a continuation of Proto-Indo-European "*Dyēus Ph2ter", while Svarožič and solar Dažbog were the same deity, though, he concluded, two other aspects of Svarožič also existed: fiery Svarožič, as in the Sun (mentioned in Russian medieval manuscripts), and lunar Svarožič, associated with the Moon. Franjo Ledic, on the other hand, assumed that Svarog and Dažbog are the same god.