Helian Bobo
Xia (), known in historiography as Hu Xia (胡夏), Northern Xia (北夏), Helian Xia (赫連夏) or the Great Xia (大夏), was a dynastic state of Xiongnu origin established by Helian Bobo during the Sixteen Kingdoms period in northern China. Prior to establishing the Xia, the imperial clan existed as a tribal entity known as the Tiefu ().