Arkat

A great hero who killed Nysalor and founded the Autarchy

The dating for many of the events of his life is unclear, mainly because the two most recently prepared timelines are a) contradictory and b) included in the same source. The timeline issue is discussed in Gbaji War Timelines.

As a Brithini

Around 400 ST, he landed Arolanit with Brithini Army (G:CotHW)
The army liberated Arolanit, then attacked Tanisor but were defeated (CoT)
He was among the Seshnegi, inciting everyone against the cult of Nieby which he called Gbaji. King Blastring sent for him and was convinced. (Kings of Seshnela)
He converted Hrestoli Church and soon learned all of its arts and magic. (G:CotHW)
He killed Grachamagacan with Malaskan Phillippe of Fourth Brithos Army of Law around 410 ST (G:CotHW)
He was appointed as the Grand Marshal of the Crusade Against Chaos from 417 ST to 425 ST(G:CotHW)
He made Arkhome as his capital.
He was often accused of abusing the invocation of the privileges and frequent use of the magic of Crusade (AL)
He had a Sword named God Cleaver or Unbreakable Sword.
He killed Derinogus Pistol, General of the Dari Alliance (D:LoD)
He was killed by Palangio at Kartolin Pass (HotHP)

Harmast Barefoot brought back him from the Underworld (HotHP)
He converted to the cult of Humakt (HotHP)
He landed at Slontos (HotHP)
He won at the battle of Kaxtorplose with the help of Hendrik's Great Leap.
He then marched through Kethaela and Dragon Pass
He was healed of an old wound from Zorak Zoran by Garazaf Hyloric (UL)
After the Battle of Dayhail, he divided his army into two - the Army of Orlanth (which attacked Dara Happa) and the Army of Truth (to Dorastor). (HotHP)
He was defeated in the Battle of Salinsfort (HotHP)

Kwaratch Kang suggested him to undertake the Troll Adoption Rites. (UL)
He abandoned the Army of Truth which then retreated (HotHP)
He returned as an Uzuz to his army. He then fought the Battle of the Tower of Justice in which Nysalor was killed and cast the Curse of Cleansing in 450 ST. (D:LoD)