Petronella Vivar
From Lexicanum
Petronella Vivar, Palatina Majora of House Carpinus, was a remembrancer during the Great Crusade and in the early days of the Horus Heresy.
Her family were well known for documenting the beginning of the Emperor's unification of Terra and the conquest to find the Primarchs which made her a lot higher in the chain than other remembrancers.
Vivar arrived to the 63rd Expeditionary Force later than the other remembrancers together with her personal bodyguard Maggard. Her goal was to become Warmaster Horus's personal remembrancer, a position which Horus inclined to give her. When Horus was near death after his duel with Eugen Temba, he revealed his innermost secrets to her.
She was later killed by Horus himself in her elaborate quarters aboard the Vengeful Spirit. Whether this was to ensure that the secrets Horus revealed would remain so, or a reward for Maggard's service to him, is unclear.
