House Heartley's sigil is a thorny black heart ablaze on black strewn with red drops. The Heartley words are "Head, Heart, Hand".
House Heartley were once one of the many splinter clans who ruled parts of the Borderlands as lesser kings during the Age of Heroes. The Heartleys hold an ancient grudge against their neighbors, the Tymbers of Sandkeep. The two houses, which hold the blood of the First Men in their veins and merged with the nomadic Bordermen, competed for the throne of the Stormlands when it was an independent kingdom. The enmity and competition continues to this day and was increased when House Heartley converted to the Faith of the Seven.