Slitherine

I seem to have lost my Royal Court, but I can't the event in the message log, what settings should I look under or how do I text search in the Message Log?

Have build 2 royal courts as Massalia (Persia DLC) both have vanished.

That's weird, there is no special event attached to the Royal Court. Unless your region is not producing enough infrastructure, I don't see why it disappears, twice (also, raids can destroy buildings).

I can only advise watching each turn if your court disappears, if yes, lower the message priority to low and check them all. If you see nothing and can't understand why, then I'll need the previous turn to see the reason for this mysterious loss.