Siennon
From Warhammer 40k - Lexicanum
| Map | Basic Data | Planetary Image | |
|---|---|---|---|
|
Name: | Siennon |
|
| Segmentum: | |||
| Sector: | |||
| Subsector: | |||
| System: | Nappolis System[1] | ||
| Population: | |||
| Affiliation: | Imperium[1] | ||
| Class: | |||
| Tithe Grade: | |||
Siennon is the capital world of the Nappolis System.[1]
During the Indomitus Crusade the star system was liberated by Battle Group Haephestus from Chaos cultists called the Scions of Carnage who had seized control during the opening of the Great Rift.[1]

