Description
Little is known about Hdar-Fye that is not true of the rest of the Iron Authority, which is marked by towering structures of black iron on a plateau of volcanic rock where no plant life grows. Its one distinguishing description, both in 812 and 836 PD, is that it is the necropolis of Prince Hdar. That likely means Prince Hdar rules this "city of the dead" as one of the four royal generals serving under Tz'Jarr, the Iron Emperor.
Demographics
Presumably, like the rest of the Iron Authority, Hdar-Fye is dominated by hobgoblins, who rule over other goblinkin (mainly goblins) and slaves of various races.
Notable people
The only name mentioned in relation to Hdar-Fye is Prince Hdar, who is not an heir to the Iron Crown.
Background
Hdar-Fye is situated on the volcanic Beynsfal Plateau, the soil of which was reduced to ash and permanently sterilized during the final battle of Bane, the Strife Emperor and his goblinkin legions during the Calamity. For centuries afterward, those hobgoblins who remained asserted power over the other goblinkin, and launched grand military campaigns to grow their holdings, but conquest was always followed by collapse. Then, around 722 PD, the Iron Regiment devoted itself entirely to Bane, impressed their kin into military service, and began a series of conquests called the Iron Tide that conquered the entire Beynsfal Plateau in a decade and brought all of its city-states, including Hdar-Fye, under its firm control. That empire has lasted through at least 843 PD.