The Axes of Nargubraz were an Order of Warriors and Mercenaries among the Blacklocks who had sworn to redeem the dishonour of their ancestors who had granted Sauron shelter and warred with their Stonefoot Brothers in the Second Age.
The late Third Age, when Var’s people led a personal war of vengeance against the Dark Lord and his minions is marked by the existence of several temporary mansions founded by this tribe. These so-called “war-mansions” are characterized by a near-total lack of women and children and their overall strict military orientation (e.g. there is no mining beyond the necessary minimum for the maintenace of the war-gear). They are essentially semi-permanent military camps and bases for the Axes of Nargubraz in their vendetta:
Var’s folk has no “war mansions” in the Northwest. Whenever a company of the Axes of Nargubraz happens to operate in the Northwest, they are sheltered in a mansion of the western Dwarves.
Timeline of the main events:
2063 Sauron flees Dol Guldur into the East, where he takes refuge at Nargubraz. War with Vigdís's people erupts again.
2460 Saruman helps Var and Vigdís's people to expel Sauron from Nargubraz. The feud between the two houses set right once and for all.
2480 Khalarazûm is founded by the Axes of Nargubraz in the Red Mountains.
2705 Akhuzdah as a war mansion founded by the Axes of Nargubraz.
2800 Narad-dûm founded by the Axes of Nargubraz.
2802 Second occupation of Khalarazûm by the Axes of Nargubraz.
2842 Orcs under Bolg retake Gundabad. Akhuzdah closed by the Axes of Nargubraz
2850 Naragul founded by the Axes of Nargubraz.
2905 Azagarbhun founded as a war-mansion by the Axes of Nargubraz.
2915 Narad-dûm abandoned by the Axes of Nargubraz.
3005 Azagarbhun closed by the Axes of Nargubraz.
3020 Khalarazûm abandoned the second time. Naragul and Mablad-dûm left by the Axes of Nargubraz.
1 Nargubraz re-occupied by Var's people.
61 Khalarazûm again opened as a trading outpost.