History
According to unconfirmed sources, Sonneillon was an angel living in Heaven, who became a fallen angel, cast out of Heaven,[1] seemingly for participating in Lucifer's rebellion.
It remains unclear whether or not Sonneillon exists (as a fallen angel), but a Sonneillon is known as a kind of demons, the magical embodiment of envy, hate, and the need to punish. In order to summon a Sonneillon, one could perform a Taigheirm, the sacrifice of countless cats (in ancient Scotland tradition).[2]