Lord Vermiculus was angry at the news of the rebellion against him. He was angry that these nobles thought they knew better, that they could do a better job than him! But, before he reacted with violence, he should react with diplomacy. So, he had Rationabili fashion a letter to the nobles, and let him deal with their responses. But, if they wouldn't accept peace, he will crush them and their families to dust.
So, Rarionabili got to work on a letter.
Dear Houses Custodi, Nuata, Amica, and Aequs,
It saddens me greatly to hear that you aren't pleased with House Vermiculus rising to power. I understand that your Houses are old and respected, and that without you, this great land wouldn't be here. However, rebellion is not the answer. I ask that you make it known what displeases you so much, and that before any lives are lost, we negotiate a peaceful, and profitable, outcome that benefits everyone. I eagerly await your response.
Signed, your friend,
Veraci Rationabili, Ambassodor of House Vermiculus.
He then gave a letter to a messenger and sent him has fast as he could to deliver it.