Marth is a character from the Fire Emblem Series, and is the first 'Lord' class character. He is the prince of Altea, son of King Cornelius and Queen Liza, the indirect descendant of the hero Anri, and inheritor of the divine blade Falchion. He first appeared in Fire Emblem: Shadow Dragon and the Blade of Light, where he is driven from his home due to the invasion of the Dolhr Empire. He took refuge in Talys, where he met Princess Caeda, and two years later departed to amass an army to free Altea and to free the empire's grip of the continent of Archanea. This campaign was known as the War of Shadows.

In Fire Emblem: Mystery of the Emblem Marth once again leads his comrades into battle to stop his former friend, Hardin, from taking over the continent once more, and was tasked by the legendary White Sage Gotoh with stopping the return of Medeus and the earth dragons.This campaign was known as the War of Heroes.

Because of his heroic deeds across the two wars and his demonstraited leadership, Marth developed a reputation of being a legendary hero. Many believed that he was destined to lead Archanea into salvation, due to his use of the legendary Binding Shield (also known as the Fire Emblem). In time the continent came to be united under his rule, andn he became known as the "Hero-King" of the Archanean Alliance.

His first appearance in the West was in Super Smash Bros. Melee, where he was an unlockable character, alongside Roy. He has made multiple appearances in other Fire Emblem and Nintendo games since, and is the Emblem of Beginnings in Fire Emblem: Engage.