The story of Diablo 1, Diablo 2, and Diablo 3 doesn't fully explain all the lore of Diablo. In this addendum of this Diablo lore series, we discuss the treasure goblins, the Vault, and the Baroness: Greed, and explore a theory that she is one of Azmodan's Lieutenants. Could any of this lore be relevant to Diablo 4? Sources: Book of Cain http://diablo.wikia.com/ https://diablo.gamepedia.com/ https://us.diablo3.com/en/blog/15157768/patch-210-preview-the-vault-8-13-2014 https://us.diablo3.com/en/blog/20064922/two-years-tons-of-art-celebrating-reaper-of-souls-3-26-2016 https://us.battle.net/forums/en/d3/topic/10138974293#5 More Diablo 3 Reaper of Souls guides, builds for all classes - Demon Hunter, Witch Doctor, Crusader, Barbarian, Monk, Necromancer, and Wizard:    • Diablo 3: Reaper of Souls Guides   ▬ Subscribe for more videos ►http://bit.ly/RhykkerSub ▬ Follow me on Twitch to join me when I play: ►http://bit.ly/1v5gqDu ▬ Patreon rewards: https://www.patreon.com/rhykker ▬ Follow me on Twitter for updates: ►https://twitter.com/rhykker Executive producers: Recramorcen, Sarge9017, MohEternal, Kiskaloo, NickTick, Levi Jordan, Matthew J Rooney Special thanks: Maia Nashira, Remiehneppo, Neme5i5, TepidTurtle, Matthew Feiteira, Lamer of Sweden, trouble982, MONGAS INC., Terry Lee, Joel Williams, Lionblade, Valentine Judnich, Kevin Verret Jr