When the dwarves first came to the Dragonback mountains, they made their first home here, in what would later be known as Ankor Drakk. Rich in ore, the dwarves mined this area and from the mines they made their homes. The first king of the Dragonbacks, Ordorin, held his court here. Initially the dwarves had no intention of moving beyond Ankor Drakk.
However, after the death of the first king, the goblins returned to the Dragonbacks. Outlying mining settlements called for help, and Ordorin's son, king Grimbalki, responded. For years he traveled through the caves and mountaintops to rid his people of the greenskins. But when he returned, he found Ankor Drakk's gates closed to him.
His younger brother, Garudak, had declared himself ruler of the hold, independent of king Grimbalki. While many of Grimbalki's followers called for revenge, the king chose not to start a civil war. Instead he journeyed south, vowing to put his younger brother to shame by building an even greater, far more prosperous hold to eclipse his brother's.
Eventually, Ankor Drakk's mines were emptied. Garudak himself had been killed while fighting goblins, and his successor begged the king for protection. Grimbalki, feeling his vow had been fulfilled, agreed to help his fellow dwarves despite their treason, but only if they agreed to his conditions. One, that they accept him as their king once more, and two, that all stewards of Ankor Drakk would from then on take the name Garudak, as a reminder of their predecessor's shame. Naturally, the Drakkanfolk accepted.
Ankor Drakk maintained its importance, up until the invasion of greenskins. While the king had moved his court to Mount Bloodhorn, Ankor Drakk remained sufficiently far-removed and powerful to be largely autonomous even under the king's rule. Its people fought bravely in the last war, and in doing so finally cleared the shame brought upon them by lord Garudak.