Gherith Arendi

Gherith Arendi was the founder and first Chapter Master of the Black Guard, a rare Second Founding Successor Chapter of the Raven Guard Legion.

History
Gherith Arendi was a veteran of the wars of both the Great Crusade and subsequent Horus Heresy. He served as the commander of Primarich Corvus Corax's personal bodyguard, the elite Shadow Wardens. During the Horus Heresy, Gherith Arendi was long believed slain during the Drop Site Massacre on Isstvan V, but ultimately rejoined the Legion after the liberation of Scarato. Unaware of the events that had transpired back on Kiavahr and in the Ravendelve, Arendi was met with much distrust and scrutiny but was eventually cleared of all suspicion. A dark secret however remained, a secret he kept to himself, until confronted by Corax himself -- he had callously used other Loyalist survivors of the Salamanders and Iron Hands as bait to seize a shuttle and thus escape the surface of Istvaan V.

Through rumours he had heard and suspicions he harboured, Arendi led the Raven Guard to the prison world of Carandiru, which would become known as the "Day of Vengeance." Disobeying his initial orders, Arendi decided to divert his complement of warriors to rush to Corax's aid, who had been captured by the Traitors' new secret weapons, the genetically-altered Legionaries known as the "New Men", who were created by the Emperor's Children Chief Apothecary Fabius. Arendi's timely arrival probably saved the Primarch's life, a favour the Ravenlord returned immediately when he spared Arendi the pain of being crushed to death by the last survivor of the "New Men." Having fought side-by-side in battle and saved each other's lives, a new relationship of trust was established between the Primarch and his former bodyguard.

Arendi was later made the commander of the newly commissioned Black Guard, a Raven Guard unit which was formed from the Shadow Wardens, and commanded those forces during the Battle of Yarant. He would go on to lead the newly-formed Black Guard Space Marine Chapter as its first Master, following the sundering of the Legiones Astartes into separate Chapters during the Second Founding in 021.M31.