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Map Basic Data Planetary Image
px Name: Olympia OlympiaArt.jpg
Segmentum: Ultima Segmentum[2]
Sector: Unknown
Subsector: Unknown
System: Unknown
Population: None
Affiliation: Iron Warriors
Class: Dead World, former Adeptus Astartes Homeworld
Tithe Grade: None

Olympia was the Homeworld to the Iron Warriors Space Marine Legion.[1]


Olympia was originally a rugged, mountainous world whose population was concentrated within many city states, spread across the planet's surface. The planet had vast amount of stone available and as such large fortresses were built, and controlling the paths through the mountains and the high ground was very important to military security. One of the city states, the home to the Primarch Perturabo, was named Lochos. The leader of Lochos, known as the Tyrant of Lochos, dominated the region. When The Emperor arrived, he granted Perturabo a Space Marine Legion. He used this new force to depose the Tyrant of Lochos and take control of the planet. He recruited from the population of Olympia and joined The Emperor on his Great Crusade.[1]

Much later, just prior to the Heresy, Perturabo, already shaken by the Sak'trada Deeps Campaign, learned that Olympia was in rebellion against him. Governor Dammekos had passed away, and in the power vacuum left after his death the Olympian lords had resumed their politicking and bickering. In truth however, the rebellion was covertly engineered by the Word Bearers[6].

Perturabo was devastated, and returned to cleanse his world with a terrible rage. He gave the planet's occupants the choice to enact decimation, selecting 1 in every 10 of their own to die, or face extermination and enslavement if they refused[5]. Each city was cleansed street by street, leaving few alive. By the end, Olympia was in slavery and over five million were dead. Some Iron Warriors refused to take part in the carnage, and they too were struck down by their brothers.[5] Great pyres burnt in the skies of Olympia that day.[1] The Iron Warriors became aghast at the genocide they had unleashed, and Perturabo knew his father would never forgive him. Horus on the other hand was more than willing to forgive the Lord of Iron, and even praised him for his decisive action. This helped turn the Iron Warriors to betray the Emperor.[3]

After the failure of the Horus heresy and Horus's death, the Iron Warriors retreated back to their strongholds. Olympia held out against a combined Ultramarines and Imperial Fists attack for two years[1], but ultimately when it was determined the Loyalists would defeat them, the Iron Warriors triggered their own missile stockpiles. The resulting explosions turned Olympia into a vast barren wasteland and from that day on, the world was declared perdita by the Imperium.[4]

See also