The Gold Knight is an enemy from Final Fantasy III. It is found in Goldor Manor. They are relatively powerful, but are among the weaker enemies found in the manor. Physical attacks work well enough in defeating them.
Three golden knights are seen attacking Prince Alus in the pub of Southwestern Saronia, believing him an imposter. Luckily the Warriors of Light arrive just in time to defeat the knights and make them flee.
Stats
Other appearances
Final Fantasy Record Keeper

Final Fantasy Brave Exvius
Mobius Final Fantasy

Gallery
Etymology
Gold is a chemical element with the symbol Au and atomic number 79. It is a dense, soft, malleable and ductile metal with a bright yellow color and luster, the properties of which remain without tarnishing when exposed to air or water.
A knight is a mounted soldier in armor who served his sovereign or lord in the Middle Ages. The word comes from Old English cniht ("boy" or "servant"), a cognate of the German word Knecht ("servant, bondsman, vassal"). In most European languages (with the notable exception of English), the word for "knight" comes from "horse", thus implying that a knight is a "noble horseman" or a "horse-mounted nobleman". The English noun cavalier, an archaic term for a mounted soldier, traces its roots to Latin, and is closer in meaning to the "horseman" of Romance languages.