Oldest daughter of the Lady Maege Mormont, Dacey is the heir to Bear Island, for there are no other males in the household to assume a traditional line of inheritance. Like her mother Maege, Lady Dacey is an unconventional woman of the Seven Kingdoms, having been trained to bear arms like a knight. The Mormonts have a long tradition of raising warrior women.

As a girl, Dacey was given a morningstar instead of a doll, and was raised alongside her house’s men-at-arms. She is six feet tall and willowy, and remarkably pretty when she dresses like a woman. She keeps her hair cropped short, and wears mail and rides a horse with as much skill as any male knight her age.

Dacey rode south against the Lannisters with Robb Stark, with Dacey being numbered among Robb’s battle companions and personal guards during the Battle of the Whispering Wood.