odds of random events : constant or dependent on amount ? (temple kill event etc. )

[Edi]

What I should have said is that events are determined by local luck scale as long as you have luck scales to begin with (i.e. positive luck is considered only if it's from your own dominion and/or from sites that increase such scales locally).

The three event limitation is per province. I've had as many as a dozen events happening all at once, but no more than three per province.

Edi