Sigismund is that you?

[Hyaenidae]

 

Heraldry isn't the same as armor colors. Otherwise the Lamenters armor would be entirely black and white checker patterns.

 

 

Personally, I think it looks exactly like how all the Imperial Fists 1st Co should look. Dorn reprinted his armor black after the Emperor was put on the throne, so if the IF 1st company had white insets with a black cross on their pauldrons before the heresy, then repainted their armor with the Primarch, it suddenly makes perfect sense why the BT color scheme is the way it is.

Still begs the question as to why he was refered to as "The Black Knight"

 

Personality.

 

What he said. Long before the heresy, Sig's was a very "glass half empty" guy, who was convinced that the Great Crusade would carry on forever. Back then, such an attitude was unusual, as many thought that the Crusade would bring peace to the galaxy.