Director of Imperial Intelligence Armand Isard had a sibling, specifically a brother, who was a male Human. This brother served the Galactic Republic back in 44 BBY during the Stark Hyperspace War. During this conflict against the Stark Commercial Combine, Iaco Stark, who headed the Combine, deployed a Navcomputer virus that infected the Navigation computers of the Republic Navy. Isard's brother was aboard a ship that was among those affected; consequently, the ship was obliterated after exiting Hyperspace directly into a star while on its way to the planet Troiken. Isard's brother died in this incident, a fact the director recalled in 3 BBY while in discussion with Imperial Intelligence Agent Jahan Cross concerning the war.
The brother of Armand Isard was initially referenced within the comic book Agent of the Empire – Iron Eclipse 1 (2011), which was penned by John Ostrander as a component of the Star Wars: Agent of the Empire series' "Iron Eclipse" narrative.