Golgothos
Golgothos, Primarch of The Entombed
Golgothos has disappeared. From this day on many will ask if he is dead, and as the years turn to centuries men will more often believe that he could not have survived so long. I put it that the whole question is absurd. Golgothos' stubborn will embodied the spirit of mankind. So long as there is one man to wonder if the Primarch lives, it can be certain that he does.
(Excerpt from Golgothos the Eternal by Gaspard Lumey)
Appearance
Before his internment, Golgothos had bone white skin, and a bald head. He was a skinny, malnourished man, with visible bones from 30 years of malnourishment and overexertion. During the Great Crusade, Golgothos was interred in an Ossuary Pattern Dreadnought. His Dreadnought is massive, dull grey with white details, and his own skull is mounted for the head. The Contemptor-class Dreadnought has a minor modification: flanking the decorative skull, on either side, are repositories with the skulls of fallen entombed veterans stacked within. These repositories, large rectangular things, would eventually be integrated into the bulkier design of later dreadnoughts. On one side of the dreadnought, where an arm should be, is a massive Demolisher Cannon, capable of leveling entire buildings. On the other side is a mighty power fist, which has crushed Golgothos' hated foes many times.
Youth
Golgothos' pod crashed into the caves of an Ork-populated world called Sepulchra. He spent the first 30 years of his life in complete isolation, believing himself to be the only one of his kind. Golgothos hunted Orks for sport, with a power fist he found in an ancient catacomb. He came to believe he was a god, the last of his kind, sent to punish the Orks for their impurity.
The Coming of The Emperor
Golgothos' was cornered by an Ork Warboss named Skullgub and his meganobz, and in an act of desperation called out to the gods. At that very moment, The Emperor's drop pod crashed through the caverns and crushed Skullgub to a pulp.
The Great Crusade
Golgothos was a religious man before he was rescued by The Emperor, believing him to be the last scion of a race of gods. When he discovered mankind lived, he exalted, and declared The Emperor to be the king of the gods. Golgothos' religious zeal would be passed on to his legion, who believed it was their holy quest to purge the galaxy of xenos, witches, and heretics. During the great crusade, Golgothos declared a new form of soldier would be created, called a Chaplain. These chaplains invoked the faith of their bretheren to maintain their resolve, or push them against difficult odds. The morale given by the chaplains was instrumental in the success of The Entombed on zone mortalis missions. Where other astartes feared to tread, the mighty armour and implacable will of The Entombed kept them marching onward. This enraged the Emperor so greatly that he performed the Decimatus upon the legion, killing 9 out of every 10 Entombed. After the Decimatus, most Entombed renounced their faith, but a quiet few continued their worship in secret.
The Heresy
Golgothos was infuriated by the betrayal of Hektor. The thought of in-fighting among the gods when there were so many xenos to purge threw him into a fury, and so he committed every single marine under his command to Istvaan V. This proved to be his undoing, as a bombardment of chemical weapons by the Life Bringers completely destroyed 8 of his 10 companies. After Istvaan V, Golgothos and his legion were forced to return to their homeworld, unable to continue the war.
Post-Heresy
Golgothos swore bloody vengeance against Johannes Vrach, primarch of the Life Bringers. After the destruction of Rai, the Life Bringer homeworld, Golgothos gathered 100 of his venerable dreadnoughts and charged into the Eye of Terror. Golgothos and his men travel from world to world, constantly chasing after Johannes. Golgothos and Johannes have fought numerous times, usually resulting in grievous wounds to Johannes, but the master apothecary always manages to survive.
Centuries later, in M35, The Entombed battled the Life Bringers on the hive world of Mortis. As the battle raged, Johannes Vratch appeared, and slaughtered Entombed by the score. When all hope seemed lost, a terrible warp storm tore the sky asunder, and from it screamed Golgothos and his Venerable Dreadnoughts. The glorious duel shook the planet itself, and in the end, both Primarchs lay dead.