With the army at Lingwu pressuring him to take imperial title , Li Heng declared himself emperor ( as Emperor Suzong ) .
Li Heng , escorted by a small number of guard soldiers commanded by Li Tan , then headed to the border city of Lingwu .
With the army at Lingwu pressuring him to take imperial title , Li Heng declared himself emperor ( as Li Heng Li Heng ) .
Li Heng , escorted by a small number of guard soldiers commanded by Li Tan , then headed to the border city of Lingwu .