Sovereignty of Serenia

The land that Graham and Cedric travel in KQ V as they are trying to rescue Graham's family.

It was also the land where the wanderer defeated Harlin twice to save Priscilla

This land was first seen in the old sierra graphic adventure "Adventure in Serenia/The Wizard and the Princess".

It is known as Sovereignty of Serenia.

There are two main populated regions in Serenia one is Village of Serenia which lies far out in the desert south of the shoreline near the Northern Sea, and Serenia Towne that exists near the dark forest, and is a couple of hours from the Great Mountains. There is apparently one more town east of the Great Mountains.

It is also the name of the continent where Serenia, Daventry and several other smaller nations are located, though the continent's name appears to be interchangeable with the name "Daventry" on some maps. Though perhaps there is a relation between two continents similar to how asia and europe are connected to each other. Other Continents in the world include Kolyma and Tanalore.

Real World
Fans in their fiction, prefer to call the whole KQ world as 'Serenia', not only that particular realm. Therefore, Daventry, Green Isles, Eldritch, Tamir and other realms are only parts of Serenia. However in the official literature the entire world is referred to as the World of Daventry, simply Daventry, or earth.