Legion of Soulblight

On paper, the Legion of Soulblight seemed a most ungenerous gift. To despatch but a single census legion into Sylvania, when other campaigns had boasted as many as three, could have seemed an insult at best, and folly at worst. However, the Legion of Soulblight was by far the largest of Nurgle’s census legions, easily outmatching any two of the Plaguelord’s other formations combined. Only a fraction of the legion fought at the Dead and Buried - the rest continued southwards towards the Nine Daemons under the command of the Great Unclean One Scrofulox.

Source
Legión del Alma Enferma
 * The End Times Vol V: Archaon
 * pg. 60