The only member of the house to appear is Lord Lothar Mallery. He was among those led by Lord Beric Dondarrion to bring Ser Gregor Clegane to justice at the order of the Hand Lord Stark.
Lord Lothar was chased and drowned, one death among some eighty others, when Gregor Clegane and his reavers ambushed Lord Dondarrion’s company at the Mummer’s Ford.