In Norse mythology, who is the father of Thor?

In Germanic mythology, Odin (from Old Norse Óðinn) is a widely revered god. In Norse mythology, from which stems most of the information about the god, Odin is associated with wisdom, healing, death, royalty, the gallows, knowledge, battle, sorcery, poetry, frenzy, and the runic alphabet, and is the husband of the goddess Frigg. Odin is attested as having many sons, most famously the gods Thor (with Jörð) and Baldr (with Frigg), and is known by hundreds of names.

Odin is a prominently mentioned god throughout the recorded history of the Germanic peoples, from the Roman occupation of regions of Germania through the tribal expansions of the Migration Period and the Viking Age. In the modern period, Odin continued to be acknowledged in the rural folklore of Germanic Europe. References to Odin appear in place names throughout regions historically inhabited by the ancient Germanic peoples, and the day of the week Wednesday bears his name in many Germanic languages, including English.