In February 1850 , after the Daoguang Emperor 's death , Yixuan 's fourth brother , Yizhu , ascended the throne .
In February 1850 , after the Daoguang Emperor 's death , Yixuan 's fourth brother , Yizhu , became historically known as the Xianfeng Emperor .
In February 1850 , after the Daoguang Emperor 's death , Yixuan 's fourth brother , Yizhu , ascended the throne and became historically known as the Xianfeng Emperor .