Suma Lagu
, formerly known as Somal, was born in a herdsman family in Kezuo Middle Banner. She worked as a maid in the Zaisang family of Horqin Beile since she was a child. In the tenth year of Houjin's destiny (1625), as a maid, she was brought to Houjin Palace by Empress Xiaozhuangwen
. From then on, he lived in the palace for eighty years. In the forty-fourth year of Kangxi (1705), he died in the Qing Palace at the age of ninety.