I'm not entirely sure as it's not a very common or well - known novel title to me. It could potentially be about a queen's chair or something related to a queen in a very general sense.
The themes in 'la reine margot novel' include family. The relationships within Margot's family, like her with her mother and brothers, are both loving and full of political undertones. Also, the theme of survival is present. Margot has to navigate the dangerous court life to survive, with plots and intrigues all around her.
In 'la reine margot novel', Margot's mother is an important character. She plays a role in the political machinations in the court. Also, the king at that time is important. His decisions and actions influence the power dynamics and the lives of those around him. There are also various courtiers who are important as they contribute to the intrigue and politics in the court.