Thonis
Situated in the Saedran Sub-sector of the Eridani Sector, Thonis is the home system of the Cobalt Scions Chapter of the Adeptus Astartes. It is the name given to both the system as a whole, and its primary planet. The system has four suns and numerous inhabited worlds, all of which are collectively referred to as Thonicia, and its inhabitants as Thonicians.
Thonis Prime
Political Structure
Thonicia is ruled from Heracleion, the system's capital city. Following the arrival of the Cobalt Scions, Chapter Master Tiberius Drusus has reformed the government and assumed control, giving himself and all future Chapter Masters the political rank of Dictator. The last planetary governor, Lord Aderbal, was given a new title: Locutor of the Senate. Representatives from Thonis' 49 most prominent noble families would also be allowed to nominate a Senator to represent their interests. Controversially, Drusus also announced that ten commoners - called Tribunes - would be responsible for informing the Senate and the Dictator how their legislation was being received by the wider Thonician population. More importantly, if the Tribunes were unanimous, they could veto new legislation proposed by Senators. This veto could only be overruled by the Dictator or, in his absence, by one of the Cobalt Scions' lieutenants, all of whom hold the title of Praetor.
This total upending of a millennia-old regime was met with opprobrium by the Thonician nobility, but they soon realised they all wanted to have a seat at the Senate. The inevitable infighting broke their unity, and ensured they were marching to the beat of Drusus' drum.
For more detail on the context of these reforms, and the events preceding them, see the appropriate section on the Cobalt Scions history.
Economy & climate
Thonis Prime is a self-sufficient planet sporting a mixture of agriculture, manufacturing, and other industries. Its climate is highly favourable to human life, albeit slightly too warm for visitors. The polar tundra regions are largely uninhabited, while extensive seawater desalination plants and soil culturing have been used to turn arid areas into productive agricultural regions.