|Alias(es)||Lucifer the Liar|
|Title(s)||River king/King of the Trident|
|Book(s)||The World of Ice & Fire (mentioned)|
Lucifer Justman, known as Lucifer the Liar, claimed the title of river king or King of the Trident in the generations after the riverlands were conquered by the Storm King Arlan III Durrandon. Lucifer had a brief, inglorious reign before being put down by the power of Storm's End. His connection with the extinct Justman dynasty is unconfirmed.
- The World of Ice & Fire, The Riverlands.