Ferrus Manus

Ferrus Manus is the Primarch of the Iron Hands. He was brought up on Medusa. He appears in the following verses:
 * In Bloody Mary's Lovehammer Ferrus Manus is a loyalist.
 * In Scattering of Serenity Ferrus Manus is a traitor and a Deamon Prince.
 * In Toy Soldiers Ferrus Manus turns traitor, but later is turned back to the Imperial side.