Ossorus

According to legend, Ossorus was protected by Balam, the first Gungan warrior. Upon Balam's death, Oma-Oma took him to Ossorus and granted him immortality in exchange for teaching the other guds the art of warfare. Balam also created the city Otoh-D'in, where the bravest Gungan warriors arrived after their deaths. The legions there were pledged to defend Ossorus if it ever came under attack from Mekamok and his acolytes. The Gungans also believed that Ossorus was protected by enchanted sando aqua monsters and giant Gungan warriors atop loyal kaadu mounts.

Ossorus was first mentioned in the 2001 LucasArts video game Star Wars: Galactic Battlegrounds.