Athesiel's seal
In the Theurgia Goetia, the second book of the Lemegeton, Chief Duke Athesiel is one of the fifteen Servitors of Icosiel. An Aerial Devil, Athesiel is good-natured and obedient, doing exactly as his summoner asks. Both a diurnal and nocturnal demon, he is most easily summoned from within a house. Athesiel has dominion over the planet Mars and commands 2,200 servitors.