In Today's episode, we're going to cover all 18 of the primarch very loosely. This should give everyone a great understanding of at least who all of the major "players" are.
It's a bit confusing stepping into such a huge and sweeping lore, but this will give you some perspective on their relationships, and their legions' individual importance.
List of Primarchs:
I - Lion El’Johnson, The First, The Lion
II - Deleted
III. Fulgrim - The Phoenician
IV. Perturabo - The Lord of Iron
V: Jaghatai Khan - The Great Khan
VI. Leman Russ - The Wolf King
VII. Rogal Dorn - The Emperor’s Champion
VIII: Konrad Curze - The Night Haunter
IX: Sanguinius - The Angel
X: Ferrus Manus - The Gorgon
XI: Another deleted legion
XII: Angron - The Red Angel
XIII: Roboute Guilliman - The Avenging Son
XIV: Mortarion - The Death lord
XV: Magnus the Red - The Crimson King
XVI: Horus Lupercal - The Warmaster
XVII: Lorgar Aurelian - Bearer of the Word
XVIII: Vulkan - The Lord of Drakes
XIX: Corvus Corax - The Raven-Lord
XX: Alpharius Omegon - The Last Primarch
Huge Thank you to Games Workshop & Black Library for creating such amazing fluff