#19 by hanako - Jul 24 2012
Lucille will intentionally stop hassling you if you make her your minister OR if you
make her Duchess of Merva for real. If you read Novan History 70 / Internal Affairs 20, this is something she's wanted all along but could only manage to sort-of get through her husband. This can happen if your dad dies and you have to frantically reassign dukes to cover all your territories, if you have that piece of Internal Affairs information in order to think of it.
But in general she's not suicidal and will also back down if it looks like it's too dangerous to continue. IIRC the poisoning only happens if the King Dowager dies and Lucille comes to the castle to 'comfort' you, and then is not chased away by Arisse or placated by the above.
Although I misremembered. If you have high enough Herbs you figure out that you've been poisoned but too late to do any good.