Responses
I'm guessing his hatred of being an Emperor but still living under the shadow of the Kalistos is overpowering his greed for the power. He's basically the same old shit, greedy and disgusting. If she is found guilty then what he suggested that she be returned to the Zachary household would mean gaining the support of those disgusting nobles while wielding the power of the Kalistos.
I dont get it. The Emperor wants her to be his daughter so he can force her into a marriage... what does he benefit from siding with some random noble with barely a decent public reputation and no power? Like whut?