Lucifer means Lightbringer

Night's King Azor Ahai

George R. R. Martin is Writing Modern Mythology

The Bloodstone Emperor Azor Ahai (Bloodstone Compendium 2)

Astronomy Explains the Legends of Ice and Fire (Bloodstone Compendium 1)

Ch 5: Tyrion Targaryen

The Grey King and the Sea Dragon (Weirwood Compendium 1)

The Great Empire of the Dawn

Ch 2: The Bloodstone Emperor Azor Ahai

Azor Ahai the Bad Guy (Why Jon Won't Kill Dany)

The Doom was an Abolition (Faceless Dragon p.2)