Assertion: dynasty's king | /r/CapableOf | switch their allegiance
Facets:
value: often
type: TEMPORAL
value: to the xiongnu chanyu
type: TRANSITIVE-OBJECT
Source sentences:
text: Up until the reign of Emperor Jing of Han, the Emperors of the Han had great difficulty bringing the vassal kings under control, as kings often switched their allegiance to the Xiongnu Chanyu whenever threatened by Imperial attempts to centralize power.