Lü Long
During his reign , Later Liang was under constant attacks by Northern Liang and Southern Liang and reduced largely to its capital Guzang ( 姑臧 , in modern Wuwei , Gansu ) . 
<triplet> Wuwei <subj> Gansu <obj> located in the administrative territorial entity <triplet> Gansu <subj> Wuwei <obj> contains administrative territorial entity