|— City of Gerenia —|
|Nickname(s): Diamond City|
Mariaville is a city in Gerenia, in the province of Sängeran. It is the second planned community built in the country (the first one being Alĵis in Barzat) with the goal of relocating thousands of people who were living in the nearby Gerze, causing it to grow in a disorganized manner.
As a planned community, Mariaville's official name is Model City of Mariaville (Gerenian: Kadžabrates Mariavilles). However, the denomination "Model City" is not an official city status in Gerenia.