[MR] A Question of Protocol

[Mel]

Greetings unto the list,

I have a question of protocol for everyone.

At an event, when does one stand in reverence.  Does one need only  
bow to Their Majesties when their Majesties or Highnesses address  
them, or do we rise and show respect when they pass our pavilion?

Do we rise for only our own Baron & Baroness, or does every coronet  
deserve our reverence? And again when??

I simply ask because I see a vast difference in what some people do  
and what others do.

Any information on the protocol would be greatly appreciated.

In service
Lady Caterine