Gilgeam Gilgeam , the God - king of Unther , was a demigod and the former leader of the Untheric pantheon . He was known for his jealousy , cruelty and pride . A former intermediate deity , he was reduced to the state of demigod after the Time of Troubles due to his centuries - long abuse of his followers . He was killed not long after by his life - long nemesis Tiamat . A second incarnation of Gilgeam appeared in the world of Abeir in the century that followed the Spellplague . This incarnation of Gilgeam was brought back to the world of Toril during the Second Sundering . Description . Gilgeam ' s first incarnation avatar was a handsome , tall and muscular human with golden hair and beard . Gilgeam ' s second incarnation had very much the same appearance , with the difference that he was shaved and had no hair in his head . Worshipers . All the people living in Unther , from noble to peasant , was nominally a follower of Gilgeam , even if that wasn ' t actually true . Relationships . Gilgeam was a son of Enlil , and thus a brother of Enki . Gilgeam has had a long and contentious relationship with Tiamat , their avatars having battled with each other numerous times . They have both sought power and influence in Unther , with Tiamat ultimately proving the victor , at least for a time . History . Gilgeam first appeared in Toril alongside the rest of the Untheric pantheon , when the slaves the Imaskar i brought from another world also brought the worship of their deities with them . With help from Ao , these deities were able to follow their worshipers and end their servitude . The original patriarch of the Untheric pantheon , Enlil , abdicated his position in - 734 DR , making Gilgeam the new leader of the pantheon . In - 1071 DR , Gilgeam and his pantheon marched to war against the deities of the orc pantheon during the Orcgate Wars . During the final Battle of the Gods , Tiamat launched a surprise attack against Gilgeam ; the ever - vigilant Marduk intervened , sacrificing his life to kill Tiamat and save the God - king . Gilgeam grew increasingly tyrannical after this and the people of Unther never forgot the " Nemesis of the Gods " . In 1346 DR an aspect of Tiamat known as the " Dark Lady " was summoned , increasing the ranks of her followers and completing her ascension to demigod . She sought to overthrow Gilgeam and over the next dozen years a rebellion arose throughout Unther . This conflict culminated during the Time of Troubles with Gilgeam destroying Tiamat , seemingly putting an end to her threat towards his eternal rule . In truth , however , Tiamat ' s essence was splintered among three powerful dragon s in the region . The largest of the three , Tchazzar , consumed the other two , thereby transformed into Tiamat anew . Eventually Gilgeam was slain during a battle with the reborn Tiamat that almost destroyed Unthalass , throwing Unther into chaos and dissolving the whole Untheric pantheon . During the Spellplague , a few lands of Unther were transported to the continent of Shyr in the world of Abeir , and the surviving Untherite became slaves of the Shyran genasi . At some point , a new incarnation of Gilgeam arose among the slaves and led them to rebel against their new masters . Seeking to win his war against the genasi , Gilgeam made an alliance with the demon lord Graz ' zt to bolster his human forces with an army of demon s . < ref name = " TDYK / Hardcover - p94 , 141 , 310 " > < / ref > On Nightal 26 1486 DR , as part of the final stages of the Second Sundering , Gilgeam and his people returned from Abeir to Toril . In the following days , the " Son of Victory " marched immediately against Djerad Thymar to reclaim the lands of Unther from Tymanther , triggering the First Tymanther - Unther War . < ref name = " TDYK / Hardcover - p93 - 98 " > < / ref > However he lost this war on Hammer 10 1487 DR , when the malbongean forces lent their aid to the Tymantherans and destroyed his demon army . < ref name = " TDYK / Hardcover - p483 - 484 " > < / ref > Although defeated , Gilgeam didn ' t relent from his plan to retrieve all of the former lands of Unther . As of 1489 DR , Tymanther and Unther were waging a new war , although the Untherite army was unable to defeat the dragon turtle that protected Djerad Kethendi . According to a conversation between Enlil and his Chosen , Kepeshkmolik Dumuzi , the behaviour of this new incarnation of Gilgeam and the fact that he called himself the " Son of Victory " and not the " Father of Victory " , implied that this new incarnation of the god wasn ' t the original Gilgeam , but either a new god or an imposter . < ref name = " TDYK / Hardcover - p239 " > < / ref >