Who were Hephaestus relatives?

The mother of Hephaestus is Hera, and sometimes she is said to have had him on her own or with Zeus; his wife was first Aphrodite and later Aglaia; he also had children by Kabeiro, by Aitna; by Athena/Gaea, Ocresia, Anticleia, and Atthis as well as other children by unknown mothers.