Samael

Samael (Hebrew: סמאל‎) (also Sammael, perhaps "Venom of God") is an important archangel in Talmudic and post-Talmudic lore, a figure who is accuser, seducer and destroyer, and has been regarded as both good and evil. It is said that he was the guardian angel of Esau and a patron of the empire of Rome.

Also called Sammael and Samil, he is considered in legend both a member of the heavenly host (with often grim and destructive duties) and a fallen angel, equatable with Satan and the chief of the evil spirits. One of Samael's greatest roles in Jewish lore is that of the angel of death. In this capacity he is a fallen angel but nevertheless remains one of the Lord's servants. As a good angel, Samael supposedly resides in the seventh heaven, although he is declared to be the chief angel of the fifth heaven.