Estrid

Estrid receives relatively little individual development, but her appearances portray her as gentle and uncomfortable with the casual acceptance of dangerous violence around the royal court.

When she watches Canute spar with Wulf using real swords, she worries that her brother could be seriously injured. Her reaction helps illustrate how dramatically Canute has changed from the boy who once disliked even handling weapons.

Estrid has no established combat abilities or military specialization.

Her position gives her social importance as a member of the Danish royal family, but the story does not portray her exercising independent political or military authority.

Estrid appears in Jelling during the period when Canute is consolidating authority across England and Denmark.

She watches Canute train with Wulf and learns from Gunnar that her formerly timid brother now accepts physical strength and martial competence as requirements of kingship.

Her brief appearances primarily expand the royal family beyond Canute and Harald and give the audience a domestic perspective on Canute's transformation.

Sweyn is Estrid's father and former king of Denmark.

Harald is her older brother.

Canute is her brother, and Estrid shows genuine concern for his safety while watching him train.

Wulf is Canute's head thegn and battle instructor. Series creator Makoto Yukimura has additionally confirmed that Wulf and Estrid are married.

Gunnar speaks with Estrid while she watches Canute's sword training.