Buldin

Buldin was the exiled king of the Dwarfs that fought for Sauron in the War of the Last Alliance. The Dwarfs of Thelor's people (Ironfists) could not bare the shame and evil done by their king. A coup de main was established under Threlin II and the Buldin had to flee for his life with his most loyal subjects. He came to Nurunkizdin and established the city with his loyal subjects near the Sea of Rhun. Eventually Sauron came to the city of Nurunkizdin and took the First of the Seven Dwarf Rings back from Buldin's heir.