Rear Admiral Erlache commanded the Imperial flagship *Heidenheim* during the Battle of Astarte, operating under Reinhard von Lohengramm within the Galactic Empire's fleet structure against the Free Planets Alliance forces led by Yang Wen-li. Erlache harbored a distinct resistance toward superiors he deemed inexperienced or recklessly bold, particularly those significantly younger than himself. This disposition drove him to openly oppose Reinhard von Lohengramm's initial battle strategy as overly hazardous, culminating in his deliberate refusal to execute Reinhard's tactical commands during the engagement. The decision to disobey proved fatal: Yang Wen-li's fleet targeted and destroyed the *Heidenheim* during the Alliance counteroffensive in 796 UC, resulting in Erlache's death. His demise, alongside the similarly disobedient Vice Admiral Staden, contributed to a significant command failure during this pivotal conflict. Details regarding Erlache's origins, personal history, or activities beyond the Battle of Astarte remain undocumented.