First of all, I think that your Authorities are really a great idea with the potential to add a lot to the game. Super!
I would like to ask if a provinve’s preference by whom it would like to be ruled can change over time, as in a conquered tribal society slowly getting used to the political system of the conqueror, coming to terms with it and finally being comfortable with it?
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The “-anus”, and even more commonly the “-
ianus” cognomen is one that hints at somebody’s origin. Slaves did use it to reference the family of their former owners, but not exclusively so. It was also used by adoptees, to hint at their former, pre-adotion name (pre-adoption Octavius becoming post-adoption Octavianus), and it could also be used as a cognomen of geographical origin – a family coming to Rome from Tusculum might for example well use the cognomen “Tusculanus”.
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And wealth, of a level we would consider filthy rich, was always a prerequisite of becoming a senator. First an informal one, and later a formal, legal one. During the time of Marius, Sulla, and Cicero, a fortune equal to about almost
sixty times a common labourer’s yearly wages was a legal prerequisite, and Augustus later increased this to about 150 yearly wages. Even the earlier amount is easily enough to purchase about 200 common slaves.
So you had to already be rich and belong to the social elites in the first place to become a senator at all. Of course, the opportunities then afforded by the position did not exactly hurt your subsequent income….