Squirpia

From the Super Mario Wiki

Squirpia is a fallen kingdom mentioned in Super Paper Mario. Although Squirpia itself is never seen, two of its inhabitants (the last of its queens and her son, to be specific) do indeed appear, although the queen is only given a cameo appearance in the form of a golden statue.

Though little is known about Squirpia as a country, it did indeed have many plans revealed by Squirp Korogaline Squirpina (or "Squirps"), its aforementioned prince and the only Squirpian ever to get a direct appearance. Apparently, 1,500 years before the setting time of Super Paper Mario, the land's queen Squirpina XIV existed as one of Tribe of Ancients' chosen protectors of the Pure Hearts, and she was therefore aware of the fact that Count Bleck would eventually attempt at destroying all worlds and dimensions with The Void. As such, she knew that she had to execute all means to protect her Pure Heart and decided to hand the mission of leading the Light Prognosticus's heroes to the Whoa Zone (where she had hidden the Pure Heart she was in possession of) to her own son, the prince. In doing so, she placed a willing Squirp Korogaline Squirpina into a hibernation pod in which he sent off an "SOS" message for the next 1,500 years as Squirpia crumbled into the past. Eventually, Mario and his league of heroes answered this message and followed a vague Squirp Korogaline Squirpina (here claiming to be called "Squirps") all the way to the Whoa Zone, where he revealed the then-dead Squirpia's efforts and the backstories of both him and his mother before allowing Mario and friends to collect the Pure Heart.

As Squirpia is seemingly a dead kingdom, none of its old territories are ever named. However, it is possible that some of the regions of Outer Space explored by Mario, Peach, and Bowser were once parts of the great land; it is especially likely that the Whoa Zone was built and controlled by the Squirpians for the aforementioned reasons of its golden statue of Squirpina XIV and the fact that Queen Squirpina chose the Whoa Zone as the place in which she hid her Pure Heart. It is also unknown if any of Squirpia's people survived their kingdom's demise or how the kingdom was destroyed. Finally, it is unknown what happened to Prince Squirps after Super Paper Mario or if the kingdom of Squirpia was ever to have any sort of future; returning to the Whoa Zone's final room after beating Super Dimentio and saving the universes will allow players to see Squirps standing before the statue of his mother and telling her that he would one day restore Squirpia, although it is unknown if young Squirp Korogaline Squirpina will ever fulfill this ambition.