In the twenty-eighth century of the Third Age, a king of great stature came to the Rohirrim, the Horse-Lords of the Mark.

He was ninth in the line of kings, and his people called him Helm Hammerhand. In his honour they called his mountain stronghold Helms Deep, and named themselves the Helmingas. They used the name in battle, to rally the men together, by shouting 'Forth Helmingas!'.