Aethusa

In Greek mythology, Aethusa (Ancient Greek: Αἵθουσα) was a daughter of Poseidon and the Pleiad Alcyone, daughter of Atlas.^[1][2][3] She was loved by Apollo and bore to him Eleuther^[4] and Linus.^[5] Through either of the latter two, Aethusa became the grandmother of Pierus, father of Oeagrus, father of the musician Orpheus. Because of this genealogical fact, she was usually identified as a Thracian.^[6]

The word aethusa was used as an epithet for a portico that was open to the sun above.^[7]

According to Pliny's Naturalis Historia, Aethusa is also the eponym of the Italian island which is now called Linosa.