Odin
Odin is a pretty well known and popular god. He is considered the all father but that is a more literary theme later on. Skaldic poetry, pre-Christian Viking poetry, is the father of Baldr, Thor, and Vali but Snorri Sturluson in the 13th century added Heimdall, Týr, Bragi, Vidarr, and Hodr as his sons making him all father. He is the wisest of wise and a god of war, death, poetry, runes, and magic. He is an Aesir and helped create the nine worlds under Yggdrasil. He rules over Asgard and collects the slain in Vahalla.