The Tempestarii were weather mages in the Frankish Empire Recorded and were recorded on by Agobard of Lyons. I read the text he wrote on them but I cannot find other texts on them that go into more detail. I am also having trouble figuring out their origin whether it was Germanic or Gaulish because of their similarly in weather mythology. Does anyone know information on their origin and practices? The main text I have gone through is Agobard of Lyons on Hail and Thunder along with the Wiki page and other folktales on weather sorcery such as the Solomonari.