Domain attitude is adjusted each season by making a d20 check modified by the bonuses and penalties such as those listed below.

Bonus Example
+5 Regent successfully deals with a major event, such as an invading army
+2 Regent has five or more ranks of Diplomacy
+2 The regent holds all holdings of one type in the province
+1 The regent holds more than 50% of all holdings of one type in the province
+1 Regent successfully deals with a minor event, such as a matter of law or a rampaging monster
+1 for each renowned/epic deed the regent has ever performed in the service of the domain
The above comes from the 3.5/D20 BCRS rules. I like to keep attitudes tracked by province. However reading this section I think it's kept the same across all provinces; but the modifiers state province. I'm a little confused.

Steve