infant daughter
... that the infant daughter of Emperor Xiaoming was emperor of Northern Wei for a single day?
... that the <b id="mwCok"><a href="./Daughter_of_Emperor_Xiaoming_of_Northern_Wei" id="mwCoo" rel="mw:WikiLink" title="Daughter of Emperor Xiaoming of Northern Wei">infant daughter</a></b> of <a href="./Emperor_Xiaoming_of_Northern_Wei" id="mwCos" rel="mw:WikiLink" title="Emperor Xiaoming of Northern Wei">Emperor Xiaoming</a> was emperor of <a href="./Northern_Wei" id="mwCow" rel="mw:WikiLink" title="Northern Wei">Northern Wei</a> for a single day?