What was the role of each Primarch?

In this scenario each of the primarchs (and legions) would live up to the design of the Emperor. In a relatively peaceful galaxy, not all the primarchs and legions would need to be mobilized for war. Thus, they could participate in the administration of the Imperium.

What did the Emperor think of the primarchs?

The emperor never thought of the primarchs as his sons. They’re his creations they serve his means, to shepherd humanity, nothing more.

Which primarch did the Emperor find first?

Traditional accounts state that the first Primarch to be found was Horus, who became the Emperor’s favourite. However a dubious account given by Alpharius states he was the first, and landed on Terra itself following the scattering.

What was Sanguinius purpose?

It’s been hinted at/theorized for a while that the Emperor designed each of the Primarchs with a purpose of some kind in mind, beyond being a war fighting tool. Magnus was supposed to take his place on the Golden Throne (hence the immense psychic powers).

What happened to the loyalist Primarchs?

Loyalist Primarchs. Today, all but one of the primarchs are either damned in servitude to the gods of Chaos, lost to current knowledge of their whereabouts or dead.

Who was the emperor’s favorite son?

Why WAS Horus the Emperors favorite son? : r/40kLore.

Is the Sanguinor Sanguinius?

The Sanguinor, also known as the Exemplar of the Host, is a mysterious entity of unknown origin that is associated with the Blood Angels Space Marines Chapter, and has been named after Sanguinius, the Blood Angels’ martyred primarch.

What was each of the Primarchs built for?

There have been multiple hints across other books that each of the Primarchs were built for a specific role (Magnus for his psychic powers, Horus for his leadership, and Roboute for his statesmanship). Has it ever been laid out quite so specifically for the other Primarchs and/or legions what their assigned tasks were?

Why is Lorgar the Emperor’s Primarch?

The First Hereticexplains that Lorgar is the Primarch that physically resemble the most to the Emperor. Lorgar represents faith and devotion to a cause (at first to the Emperor, later to the Gods of Chaos). As said in the OP, Leman Russis the Emperor’s executioner.

What are the references to Horus and Primarchs?

The general references are Lexicanumand Warhammer Wikia. I would also have difficulties to quote the books, as I read them in French. Horus: obviously, military leadership and charisma. There were tensions between some Primarchs from the early days of the Great Crusade, but all of them liked Horus and were close to him to some extent.