context: Jovian came from Singidunum. After the death of Julian the Apostate, he was proclaimed the new ruler of the Roman Empire. Jovian concluded a peace treaty for a period of 30 years with the Persian king Shapur II, according to which he refused five Mesopotamian provinces and Armenia. Confessing Christianity, Jovian restored Christianity in the Roman Empire, truncated in the rights of his predecessor, and returned to the church all its privileges. However, he tolerated paganism and all areas of the Christian religion. 7.5 months after the beginning of the reign, Iovian died in Bithynia on the road to Constantinople under circumstances that were not fully understood.
question: Under what circumstances did Flavius ​​Clavius ​​Jovian die?
answers.text: not fully understood