The Raven's Watch is a little known Loyalist Space Marine Chapter of unknown Founding or origin, though they are suspected of being a rare Successor Chapter of the Raven Guard. Very little is recorded in official Imperial records, with the exception of their most recent defence of the beleaguered world of Kitab in 990.M41, which came under attack by Tyranids from a splinter force of Hive Fleet Eumenides.