Sometime later, the Iron Age humans from Essos called the Andals invaded Westeros, bringing along the Faith of the Seven. One by one, kingdoms of the First Men south of the Neck fell to the Andals, and only the North remained unconquered. The Children of the Forest were slaughtered and disappeared from Andal lands. Over time, seven relatively stable feudal kingdoms were forged across Westeros, although their territories fluctuated over the next few thousand years through constant warfare, and no kingdom remained dominant for long: