Mẫu Thượng Ngàn

Mẫu Thượng Ngàn is described as the ruler of the Forest Palace among the spirits of the Four Palaces. Her name 'Thượng Ngàn' can be broken down into two parts: 'thượng' meaning 'above' or 'superior', and 'ngàn' meaning 'thousand' or possibly referring to a specific place or location.

As ruler of the Forest Palace, it can be inferred that she has some form of power and influence over natural features and possibly the spirits associated with them.