Agathodaemon

Agathos Daimon (ἀγαθός δαίμων, agathós daímōn, lit. 'noble spirit') originally was a lesser deity (daemon) of classical ancient Greek religion and Graeco-Egyptian religion. In his original Greek form, he served as a household god, to whom, along with Zeus Soter, libations were made after a meal. In later (post-)Ptolemaic antiquity he took on two partially distinct roles; one as the Agathos Daimon a prominent serpentine civic god, who served as the special protector of Alexandria. The other as a genus of serpentine household gods, the Agathoi Daimones, individual protectors of the homes in which they were worshipped.