Bo Yikao

[4] However, passages in the Book of Rites[5][6] and the Masters of Huainan[7] assume that King Wu's inheritance simply represented an aberration or even an older tradition among the Zhou of passing over the eldest son.

In traditional accounts not entirely dismissed by modern scholarship,[8]: 203  Bo Yikao's granduncle Taibo of Wu had likewise been passed over in favor of a younger son.

[9] In the Fengshen Yanyi,[10] Bo Yikao is the oldest and most outstanding son of Ji Chang, the "Duke of the West" of the Shang dynasty.

Ji Chang's mastery of divination means he has already foreseen his son's fate but, in order not to arouse the king's suspicion, he hides his sorrow and gleefully consumes the cakes.

Bo Yikao's soul is assigned by Jiang Ziya as the Zi Wei Emperor, who rules over the North Pole.