Complex sentence: He married off his elder son Franceschetto Cybo to the daughter of Lorenzo de'Medici, who in return obtained the cardinal's hat for his thirteen-year-old son Giovanni, later Pope Leo X. Savonarola chastised him for his worldly ambitions.
Split into simpler sentences: He married off his elder son Franceschetto Cybo to the daughter of Lorenzo de'Medici, who in return obtained the cardinal's hat for his 13-year-old son Giovanni. Later Pope Leo X. Savonarola chastised him for his worldly ambitions.