|Book||A Dance with Dragons (appears)|
In the appendix of A Dance with Dragons, Laswell is described as an "exile lord". Given that the Peakes were stripped of two of their three castles (Dunstonbury and Whitegrove) by the Iron Throne for their support to the pretender Daemon Blackfyre during the First Blackfyre Rebellion, it is possible Laswell's ancestor was the lord of one of these castles who chose to follow Bittersteel in exile at the end of the war.
A Dance with Dragons
Laswell is present during Jon Connington's rendezvous with the Golden Company three miles south of Volon Therys. He, like the rest of the company, swears his allegiance to Aegon Targaryen before they invade Westeros.
While a quarter of the company's available strength is taking Griffin's Roost, Ser Tristan Rivers sets off simultaneously for the seat of House Morrigen at Crow's Nest, and Laswell for Rain House, the stronghold of House Wylde, each with a formidable force of comparable size. If Rivers and Peake are successful, Harry Strickland argues that the Golden Company will control the better part of Cape Wrath.
—Laswell to Harry Strickland