What name did "Mario", from "Super Mario Brothers", originally have?

Mario from Super Mario Brothers originally had the name Ossan, which translates to "middle-aged man" in Japanese. However, the name was later changed to Mario because of its resemblance to the landlord of Nintendo's office in the United States. The character's name change to Mario not only paid homage to the office landlord but also aligned with the game's Americanized setting, contributing to the iconic name we know today.