Bowing and Curtseying

[Minister of Court]

Nobility do not curtsy to each other. But if they were royal, the Dowager would curtsy to the reigning. Just as Queen Mary and the Queen Mother curtsied to the Queen.

That is not entirely correct. Queen Mary and Queen Mum curtsied to the Queen at her accession out of courtesy but in general people of the same rank do not curtsy or bow to each other. They were all Majesties.