Pero

Pero's father is Oceanus and her mother is Tethys.  Her paternal grandparents are Uranus ("himmel") and Gaea ("jord"); her maternal grandparents are Uranus ("himmel") and Gaea ("jord"). She has sixteen brothers and sixteen sisters, named Crinisus, Simoeis, Peneius, Cephissus, Achelous, Neilos, Asopus, Xanthus, Inachos, Inachus, Phorcus, Nilus, Ladon, Strymon, Uchoreus, Xanthus, Eurynome, Amphitrite, Merope, Clymene, Metis, Perse, Daeira, Asia, Dione, Argeia, Doris, Aethra, Callirhoe, Melia, Meliboea and the Oceanide. She has a half-brother and two half-sisters, named Triptolemus, Creusa and Philyra.

They have a son named Asopus.