This part of the compendium will cover notable places and the battles that have occurred there. We begin our journey in the plagued planet of Barbarus, where a young Primarch meets his destiny..
Best known for its poisonous fog, which condemns the humans of this planet to live in the lowlands why the mutants and sorcerers rule above, and the homeworld of the Death Guard Legion, and their Primarch Mortarion.Khur
Adopted by a Necromancer, Mortarion's growth and curiosity led him towards the lowlands, findings for the first time his own kind suffering from the raids of the warlords above.
After earned the populace's trust by fending off a raid, Mortarion began to form a quasi-military unit to hunt down the sorcerers on the highland, an endeavor that attracted the Emperor to be reunited with his son.
It is often held that Mortarion's background facing warp-touched mutants and necromancers became the basis of his distrust of Magnus and the Thousand Sons, culminating in the Council of Nikaea.
Primarch Lorgar of the Word Bearers Legion was the founder of the Lectitio Divinatus cult, revering the Emperor as a divine God. After emerging victorious from a brutal planet-wide religious war on his adopted homeworld of Colchis, he took to the stars to spread the Word across the galaxy.
The Emperor was not pleased with Lorgar's actions, having been equipped with one of the largest Legions in the Word Bearers, his progress in the Great Crusade has been slow, due to him insisting to remain on conquered worlds to create vast shrines in worship to the Emperor.
By the Emperor's orders, the Ultramarines Legion were sent to destroy Lorgar's perfect city of Monarchia on the planet Khur, and forced Lorgar's Legion to kneel in penitence before the ashes of his failure and to denounce his cult.
His faith thus rewarded, Lorgar's fall to Chaos began, and his pilgrimage to find out the truth - whether there were Gods to be worshiped - culminated in his Legion's arrival on..Cadia
Convinced by 1st Captain