Back when Aries took Daniella, Dexter's sister's identity, Conan had already spread a rumor regarding the imperial faction being threatened by the marquess's scheme. Everyone, even children, was aware the empire had yet welcomed an empress. The emperor was a tyrant, and even when the discussion regarding welcoming an empress would be brought up in the royal court, no one had pressed on about it that hard.
Who would?
The emperor was ruthless with a nasty record of debauchery. Even though many maidens in the high society would be mesmerized by the emperor's beauty, his beguiling nature did not blind them. Or at least, his charms didn't work on the selected noble ladies Aries was able to befriend before she was married off.