She has one of her servants wait outside the Magnificent Mansion in the early morning with orders to practically drag Cansellarion in when he walks by, insisting the the Duchess wants to see him. "Don't actually startle him," she does warn him, because Cansellarion's a powerful adventurer, but she isn't that worried about anything other than rudeness, because he's a paladin and even when startled paladins don't leave people bleeding to death in the streets.
She isn't too worried about rudeness either. She's had all night to prepare.