Complex sentence: Lorenzo de' Medici (1 January 1449--9 April 1492) was an Italian statesman and "de facto" ruler of the Florentine Republic, recognized as one of the most powerful persons of the Renaissance.
Split into simpler sentences: Lorenzo de' Medici (1 January 1449--9 April 1492) was an Italian statesman and "de facto" ruler of the Florentine Republic. He is recognised as one of the most powerful persons of the Renaissance.