The Everchosen, also known as the Lord of the End Times, is a mortal champion behind whom all the Chaos Gods unite. War and death, famine and plague follow this great warrior wherever he treads, and nature itself abhors his presence.1 p68
Morkar, the Uniter
The first Everchosen. Morkar became Everchosen around year 1 and was given the task of making the world a permanent beacon of Chaos. After winning many battles Morkar´s army clashed with the armies of Sigmar Heldenhammer. Morkar met Sigmar in combat in a battle that would determine the fate of the world. The battle was likened to that between gods, but in the end Sigmar struck the killing blow, destroying Morkar and ending his incursion. From the ashes of this battle, Sigmar became the first Emperor of the united human tribes. For thousands of years since, his Empire has endured as a beacon of humanity. After his defeat, Morkar's armour was placed in his tomb. Over 2500 years later Archaon came and tried to take the armour but the spirit of Morkar took control over the armour and started attacking Archaon. Only after Archaon spat a curse in the long-dead language of the Unberogens that the armour ceased it's attacks for a second, which allowed Archaon to smash it asunder and banish the spirit of Morkar.1 p34-35
The second Everchosen. Vangel bound the Greater Daemon U'zuhl into the Slayer of Kings. The millennia of imprisonment sent the Daemon insane with rage. Vangel was killed in battle Gromrir Goldfist. 1 p69
Kharduun, the Gloried
The third Everchosen. Kharduun was possessed by Be'lakor, the dark master during his siege of Praag. When Be'lakor tried to gain access to the Crown of Domination, using Kharduun's body, he found that he couldn't reach it. Be'lakor was filled with rage. His fury and his insanity eventually destroyed his physical body, and he was forced back into the shadow paths to guard the Crown of Domination.
Asavar Kul, the Anointed
The Fourth Everchosen. Asavar Kul was a great warlord who led the armies of Chaos two hundred years ago in the greatest Chaos Incursion in thousands of years, referred to as the Great War Against Chaos. His forces besieged and sacked the city of Praag, turning it into a city of nightmare and darkness. Later laying siege to the city of Kislev but was defeated by three other armies: the army of Magnus the Pious, the defenders of Kislev, which included a contingent of dwarfs from Karaz-a-Karak and the other half of Magnus's army consisting of knights and Kislevite lancers attacking from behind.
Archaon, Lord of the End Times
Archaon is the mightiest Everchosen, for only he has uncovered all of the Six Treasures of Chaos.1 p68 Once a devoted servant of Sigmar, Archaon discovered a terrible secret in the heretical texts of Necrodomo the Insane that sent him fully to Chaos.1 p34 After being crowned the Everchosen, Archaon led the Storm of Chaos in 2522 IC.1 p41 His goal was to extinguish the eternal flame of Ulric in Middenheim, thus destroying the god of wolves and winter and ushering in the destruction of the Empire2 p14