Assertion: empire's emperor | /r/HasProperty | viracocha inca
Facets:
Source sentences:
text: However, they did not truly become an expansive power until the eighth emperor, Viracocha Inca, took control in the early 15th century.
text: The expansion of the Inca Empire began by the time the fourth emperor, Mayta Capac took hold, but didn't gain momentum until the reign of the eighth emperor, Viracocha Inca.