One of the unique aspects to 13th Age are Icons, they are the equivalent of the powerful NPC's that aid or oppose your player's in the course of the campaign.
Here is how the Icons are represented in my Aquila setting:
The Crusader is Odin, the All-Father.
The Diabolist is Eris, Goddess of Chaos.
The Dwarf King is Vulcan, God of the Forge.
The Elf King is Neptune, God of the Seas and Guardian of Lemuria.
The Empress is Cleopatra, Vampire Queen of Egypt.
The Great Gold Wyrm is Jupiter, God of the Sky, Ruler of Olympus and Warden of Lemuria.
The High Druid is Frigg, Goddess of the Earth, Mother of Thor, Jupiter's lover and Patron of Lemuria.
The Lich King is Pluto, God of the Underworld and Ruler of the Dead.
The Orc Lord is Hitler, King of the Amazons and Furer of the Alpha Reich.
The Priestess is Nemesis, Daughter of Jupiter and Nox and the Avenger.
The Prince of Shadows is Ming the Merciless, Tyrant of Mongo.
The Three are Emperor Longinus Faustus, the Bardarian, and Lotus, the Triumph of the Roman Empire.