 The other four Houses, the Ironfists, Stiffbeards, Blacklocks, and Stonefoots, lived in remote regions of Middle-earth, such as Rhûn.Almost nothing is known of their histories, except that they each sent a contingent west to fight in the War of the Dwarves and Orcs, and in the late Third Age, when war and terror grew in Rhûn itself, considerable numbers of its Dwarves left their ancient homelands and sought refuge in Middle-earth's western lands.The Petty-dwarves were Dwarves of several houses, exiled in ancient times for reasons unknown.