User blog comment:Rafe Adler/"Stuck in the Middle (With You)" Discussion/@comment-30695490-20170218152738/@comment-1031724-20170218160818

Lilith was imprisoned in hell. After Azazel died, she took over coz she was released moments before his death, and Alastair died before Lilith. Lilith's death released Lucifer, and once he was reimprisoned, only the Princes of Hell remained.