Thread:All fictions/@comment-5275759-20170606104243/@comment-25431873-20180807125736

Saint Vitus seems to refer to the legend that, as he and his tutor and nurse were tortured by Roman Emperor Diocletian, an immense storm suddenly developed over the Roman capital and a great number of lightning strikes speared the city, in particular, striking the Roman temples. The trio was freed after that for fear of their divine protection.

As for Saint Julian, that's a bit tricky without knowing who, among the dozens of saints named Julian, Kamachi meant. One possibility I found is Saint Julian of Brioude, whose church and shrine protected the faithful during the pillaging of the Auvergne by Merovingian King Theuderic I according to the legends. It includes a man being struck by lightning and burning alive after stealing from said church, a relative of the king called Sigivald being given a terrible fever for forcefully taking a villa that had been given to the church, and another man also struck by lightning for assaulting clerics of the church with arrows. More miracles and divine punishments of Saint Julian of Brioude described by Saint Gregory of Tours here (go from p. 169 and #8 onwards for examples of divine punishment, though the #3 on the list is also one).

Hope that helps.