Theresa Baratheon

Theresa Baratheon is an unseen character in Game of Thrones. She is not expected to appear in the series, being long dead by the time it starts.

Background
Theresa Baratheon is an early member of House Baratheon, the daughter of Orys Baratheon and Argalia Baratheon.

Season 1
She has an entry in The Lineages and Histories of the Great Houses of the Seven Kingdoms.