The Triad

The Triad was an alliance of three good-aligned deities: Tyr the Maimed God, god of justice; Ilmater the Broken God, god of suffering and compassion; and Torm the True, god of duty. After the Spellplague of 1385 DR, the dragon god of justice, Bahamut, also became a member of the Triad.

They resided on a celestial plane called the House of the Triad, and, after the Spellplague, they also resided in Celestia.

History
In -247 DR, Tyr first appears in Toril, in the lands that would be later known as Turmish, and led a force of 200 archons to purge the former lands Jhaamdath, that had fallen into anarchy and chaos. This campaign was called Procession of Justice. The Procession caught the attention of Ilmater, at the time an obscure deity who had similar ideals to those of Tyr, and in -243 DR, Ilmater and Tyr became allies. At some point before -238 DR, Torm, at the time a demigod, joined Tyr's forces, almost decimated at that point, as his war leader. Eventually, the alliance of the three deities became known as the Triad, who remained allies even after the Procession was over in -238 DR.

During the Fiend Wars of Impiltur, in 729 DR, an army dedicated to the Triad started the Triad Crusade. This led to the foundation the Triadic knight order. Several crusades were launched over the course of history in their name.

During the Time of Troubles of 1358 DR, Torm was killed while battling against Bane, who also died in the battle. Because of his loyalty to his portfolio, Lord Ao resurrected Torm shortly after the end of the Time of Troubles and Tyr raised him to the status of lesser deity.

In 1384 DR, the dark god Cyric manipulated Tyr to battle Helm, god of guardians, over a misunderstanding. Tyr won, and Helm died. This divided the Triad, as Ilmater chose the leave their shared plane, the House of the Triad, to live with the goddess Sune in Brightwater. Crushed by grief and shame, Tyr abdicated his godhood and granted Torm all his deific power. Tyr counseled all of his followers to offer their allegiance to Torm.

In 1385 DR, after the Spellplague had wreaked havoc in the planes, a group of demons led by the balor lord Axithar invaded the House of the Triad, and when Tyr and Torm send calls for help, the dragon god Bahamut answered by sending his legions to aid in destroying the demons. However, Tyr died while defending the Upper Planes during the ensuing battle.

Afterwards, Torm promoted Bahamut to the same position he once occupied while serving Tyr, and the dragon god became a member of The Triad alongside Ilmater and Torm, serving in the role of god of justice in place of Tyr.