• 557 DR [Year of the Melding]
  • An army of hobgoblins devastates the dwarf Duchy of Hunnabar, which is centered above the underground city of Kanaglym near present-day Dragonspear Castle. Phalorm's armies destroy the hobgoblins, but the elf king, Ruardh Lightshiver, is slain. »

  • 1255 DR [Year of the Raging Flame]
  • The famed adventurer Daeros Dragonspear seizes a fortune in gems from a beholder lairing in the lost, subterranean city of Kanaglym, in the depths of what was once Phalorm's Duchy of Hunnabar, and decides to retire. The bearded half-dwarf chooses the lair of the copper dragon Halatathlaer as the site of his castle. Dwarves are welcomed at Dragonspear Castle, and soon the outer ward fills with small stone cottages and delvings beneath them. »

  • 1281 DR [Year of the Cold Soul]
  • Berethond Halfelven, disappears during combat with a great green wyrm in the forest west of Dragonspear Castle. He is assumed dead, and the Draconomicon, which he was carrying, is believed lost. »

  • 1290 DR [Year of the Whelm]
  • Dragonspear Castle succumbs to the depredations of a Calishite mage named Ithtaerus Casalia. The Wizard binds Daeros's dragon companion Halatathlaer in magical slumber, and then tricks Daeros into sacrificing his life and activating the portal that leads to Avernus, first of the Nine Hells of Baator. While Daeros's followers battle an incursion of baatezu, Ithtaerus loots the dragon's hoard and then lures three young and ambitious dragons to the castle by having them think that Halatathlaer and his hoard are vulnerable. The dragons destroy Halatathlaer and much of Dragonspear Castle before slaughtering each other. The only survivor, a black dragon named Sharndrel, enraged at the deceit perpetrated against him, seeks out and slays Ithaerus. He then flies away, leaving the castle a shattered ruin. It is eagerly raided by goblinkin and trolls from the High Moor as well as other evil spellcasters and brigands, until all the dwarf followers of Daeros are dead or gone. »

  • 1291 DR [Year of the Hooded Falcon]
  • With an influx of money and business creates the need to expand the city of Berdusk. New walls are constructed, using material from the old walls - which for a large part become a wide road known as the Minstrelride, a street that leads up from Shortarrow Gate towards and around the castle to connect to Amberside. The Berduskans are motivated to construct new walls not just by the money, but also by the fall of Dragonspear Castle along the Trade Way the previous year. »

  • 1305 DR [Year of the Creeping Fang]
  • Allied hobgoblin tribes seize Dragonspear Castle and use it as a base to raid the Trade Way and surrounding lands. »

  • 1315 DR [Year of Spilled Blood]
  • Armies from Waterdeep and Baldur's Gate clear out Dragonspear Castle and establish an armed temple of Tempus, the Hold of Battle Lions. »

  • 1354 DR [Year of the Bow]
  • Devils claim Dragonspear Castle. »

  • 1356 DR [Year of the Worm]
  • The Dragonspear War
    Armies from Waterdeep and Baldur's Gate beseige and set fire to Dragonspear Castle, defeating the baatezu within. »

  • 1363 DR [Year of the Wyvern]
  • The Second Dragonspear War
    Baatezu entering Toril through portals in Dragonspear Castle assemble an army of ogres, hobgoblins, orcs, bugbears, goblins, and kobolds bolstered by a black dragon. These "Hordes of Dragonspear" overwhelm and destroy the Way Inn (near the High Moor) and then attack Daggerford, but are defeated by a hastily assembled force of dwarves, elves from the Misty Forest, paladins of Ilmater, mercenaries, local militia, and a troop of the City Guard of Waterdeep. »