The Archarchon is the leader of the Archons. Originally this was Lucreto before his fall.
Background[]
King Graham, now elderly, was very grateful to the local knight, Connor, for saving the Kingdom of Daventry from the evil Archarchon, Lucreto, and restoring the Mask of Eternity to its salubrious, protective powers. So grateful, in fact, that he had given Connor the title of Marquis of Daventry, with the responsibility of securing the kingdom’s borders from any outside attacks or evil intentions.
Behind the scenes[]
This term only appears in developmental backstories for the game, and not in-game but is treated as official as it also made it into the backstory for King's Quest IX (Roberta Williams).
…the central antagonist and Archarchon, Lucreto. His storyline parallels that of Lucifer, the fallen angel whose attempt to overtake Heaven ends him up in Hell.[1]