Petronius Caligarus

Space Marines Portal Ultramarines

Petronius Caligarus was a Captain in the Ultramarines Chapter, who wrote the Memorum Libris de Petronius Caligarus. It consists of his philosophies concerning how Space Marines should conduct their warfare, against the Imperium's enemies.^[1]

Source

• 1: Warhammer 40,000 2nd Edition Rulebook, pg. 46