The Dragon Quest series has gone through dozens of name changes, including the franchise title. Always known as Dragon Quest in its native Japan, due to legal issues it was introduced to American players as Dragon Warrior, though it eventually reverted to Quest. In the NES original Dragon Warrior games, the hero of legend went by Erdrick, a name that popped up dozens of times throughout the RPGs. But when Dragon Warrior 1, 2, and 3 were remade for the Game Boy Color, his name suddenly became Loto.
Why the change? As with other entries on the list, the mythical hero's new name, Loto, was the same as it always has been in Japan, though the text sometimes gets translated to Roto. That switch to Erdrick likely had to do with Nintendo of America's translation of the initial Warrior games favoring a faux-Shakespearean style of dialogue, making Erdrick a more fitting title than Loto/Roto. Even stranger is that, after establishing Loto with the western audience in the GBC releases, Square Enix has more recently returned to calling him Erdrick. Perhaps in another 10 years the fabled warrior will be Roto once again.