Cepheus

Cepheus was a mythical king of Ethiopia, husband of Cassiopeia, and father of Andromeda. He is largely undeveloped in the Greek myths focusing on his womenfolk and his eventual son-in-law Perseus.

Cepheus in "Miss Manners' Guide to Greek Missology"
Cepheus and Cassopeia arrived on Mount Olympus in their Constellation to attend the wedding of their daughter Andromeda.