Complex sentence: He attended the École des Beaux-Arts and won the Prix de Rome in 1859; he was awarded the medal of honor at the Paris Salon in 1868 and was appointed Officer of the Legion of Honor in 1878.
Split into simpler sentences: He attended the École des Beaux-Arts and won the Prix de Rome in 1859. He was also awarded the Medal of Honour at the Paris Salon in 1868 and was appointed Officer of the Légion of Honor in 1878.