Hero of the Four Sword

The Hero of the Four Sword is a hero who defeated Vaati and sealed him into the Four Sword in the back story to  Four Swords.

Story
"Long ago, in the kingdom of Hyrule, there appeared a Wind Sorcerer named Vaati. Vaati could bend the wind to his will and used this awful power to terrorize many villages of Hyrule. In his assaults on the villages, Vaati would kidnap any beautiful girls who caught his fancy.

''Many knights from the castle and other brave men set out to subdue the sorcerer and rescue the girls, but each one fell in turn to Vaati's awesome power. Just as the people had begun to lose hope, a lone young boy traveling with little but a sword at his side appeared.''

''When this boy heard what was happening, he said only, "I will defeat this sorcerer." He boldly entered Vaati's palace, mystically trapped the evil sorcerer inside the blade of his sword, and returned the young girls to their villages. The boy then went deep into the forest and disappeared.''

''The villagers asked the girls how a boy so young could have saved them all and defeated the sorcerer when no one else could. The young girls told a story of how with just a wave of his sword, the boy's body shattered into four pieces, each of which then formed a complete copy of the boy. These four young boys then worked together to defeat the sorcerer. The people did not believe the story, but they called it the Four Sword nonetheless. As rumors of the blade's power to divide a person into four entities spread, the people built a shrine to protect it.''"

Timeline placement
In the Hyrule Historia guideook, this hero is given the title of the "Hero of the Four Sword" and is not the same hero who appears in Minish Cap or Four Swords, but is another hero who appears in between the two games. He is described as as someone about whom little is known, but he appears to be the descendant of the hero who previously defeated Vaati in The Minish Cap.