Responses

some noble families including the count family were planning treason against the current royal family. if i understood it correctly, they wanted to remove the prince in position and have larriet take the throne because she is actually eligible to inherit the throne as she is also a royalty but from another family (so yes she is not from the count's family). they actually believed that they were going to get away with this plan until the prince found out and had them executed right away.
The look on the father’s face when he was getting arrested seemed to be a look of guilt. Lehan’s calm reaction was also suspicious. Normally, the reaction of innocent people wouldn’t be that calm. Larriet was the most normal in the situation, and she was the only one reacting in a way of someone who knew they did nothing wrong. Her father and brother on the other hand... it is very strange. Very strange.