Malachi Lannisters father George Lannister went with his son to the Guinness estate so they could observe Avery Guinness, the girl that Malachi would be set to marry. The task was to observe her and study her hobbies, manners, and the way she acted when she thought no one was watching. Avery had no idea this was happening only that her father had found a boy he would like her to marry.