Introduction
Bor is the son of Buri, the first Aesir god, and, through his marriage to the giantess Bestla, the father of Odin, Vili and Ve, the three brothers who go on to kill the giant Ymir and create the world.
Family
Marriage to Bestla
Bor married Bestla, daughter of the giant Bölthorn, a union between the young Aesir line and the giant race that reflects a recurring pattern in Norse myth: the gods and giants (jotnar) are frequently intermarried and closely related, despite their eventual hostility.
Sons
Bor and Bestla's three sons, Odin, Vili and Ve, together kill Ymir and shape the world from his body, the founding act of creation in Norse cosmology. Bor himself has no further independent narrative beyond this role as father of the three creator-gods.