Talk:Lich/@comment-188.99.211.240-20180824135715

" At least two are present in the ruined temple of Amaunator. They are accompanied by two Skeleton Warriors and two Greater Mummies. One is in the room right after the room with the central lava pit. "

Interesting. I have never encountered Liches in the temple, bur once met one in Spellhold, level 2 of the labyrinth. Another time there was one in the city of the undead at the entrance to the lair of the Unseeing Eye. Seems that they spawn in certain locations if your party level is high enough.