Zelgius (pronounced /ˈzɛlgiəs/[key][1]; Japanese: ゼルギウス Zelgius) was a highly esteemed knight of the Begnion Empire, a servant to Chancellor Sephiran, and a follower of Apostle Sanaki's causes. As the general of the Begnion Imperial Central Army, the elite armed forces entrusted with the defense of the Begnion capital Sienne,[2] he commanded the armies of Begnion in support of Crimea during the Mad King's War. Three years later, he and the Central Army led the rest of Begnion's forces against the Laguz Alliance, where he fought despite his own misgivings to prevent the treacherous senators of Begnion from harming Sanaki or Sephiran.
Zelgius was arguably even better known for his other identity: the Black Knight (Japanese: 漆黒の騎士 Jet Black Knight), the strongest of the Four Riders of Daein during the Mad King's War and the right-hand man to the Mad King Ashnard himself. As the Black Knight he was an enigmatic warrior, never seen outside his blessed, pitch-black armor, and was feared for his immense strength. His obsession with the former Daein general Gawain evolved into a bitter rivalry with Gawain's son, Ike, who swore to slay the Black Knight and avenge his father. Believed to have been killed by Ike in the war's last days, the Black Knight resurfaced three years later during Daein's struggle for independence from the Begnion garrison, as an ally of the Daein freedom fighter Micaiah.
(Source: Fire Emblem Wiki)
