Ermesande Hayford
Ermesande Hayford is, almost from birth, the last of her house: with no one else left to inherit Hayford, the lordship falls entirely on a small child.
The Lannisters see an opportunity in that and betroth her to one of their own, Tyrek Lannister.
Chapter 1
The name day tourney
Books only
At the tourney held for King Joffrey's name day, Ermesande Hayford appears among the crowd carried by her wet nurse. She is the Lady of Hayford, the last of a line that has run out of anyone else.
It is then that she is betrothed to Tyrek Lannister.
Chapter 2
Tyrion and Sansa's wedding
Books only
Ermesande Hayford attends the wedding between Tyrion Lannister and Sansa Stark, one guest among many.
Chapter 3
Jaime Lannister's visit
Books only
During a visit to Hayford, Ser Jaime Lannister meets with Ermesande. She is presented before the assembled knights there: a chubby little girl who still crawls.