When was the maternal uncle of Popiel I died who was the notable author of Latin prose?
Popiel I: Popiel I was a legendary ruler of Poland, member of the Popielids dynasty. Popiel I:  According to the legends reported by Wincenty Kadłubek in his "Chronica seu originale regum et principum Poloniae", he was the son of Leszko III and Julia, the sister of Julius Caesar. Julius Caesar: Gaius Julius Caesar (Latin: CAIVS IVLIVS CAESAR, ] , born: 13 July 100 BC – 15 March 44 BC), usually called Julius Caesar, was a Roman politician and general who played a critical role in the events that led to the demise of the Roman Republic and the rise of the Roman Empire.
i don't know