User blog comment:SsVivid/Monetary Reference Table/@comment-4536066-20130820173056/@comment-4536066-20130820193409

For a low noble (imagine a small-time count with a modest estate and a two or three house servants), I allotted 57k per year.

The rationale there is that he probably would eat a menu that involved maybe a nice cut of beef and a quarter bottle of wine every night, and then some good baker's bread or cheese or fruit for his breakfast and lunch, which is a menu that would run him 14.6k annually. Then, he pays his two servants their yearly income of 18.5k each, costing him 37k, and after that has an additional 5k to cover extra expenses like repairs, savings, trips, social events, etc. It totals up to about 57k per year.