On Isstvan V, the Iron Hands Primarch, Ferrus Manus met his demise at the hands of his once closest brother, Fulgrim.
In this diorama at Warhammer World, the battle between the traitor Emperor's Children and loyalist Iron Hands is depicted in full. There are many gems in this scene, including the two Primarchs facing off against each other at the apex of a small hill, surrounded by their loyal terminators perishing in droves at their feet against each other.
To say that this diorama is magnificent would be an understatement. It is certainly one of the best in Warhammer World and if you get to visit Nottingham, it is one that you will linger around for a long time!