He was the second son of Grand Duke Cosimo III and Marguerite Louise d'Orléans.
He was the second son of Cosimo III de' Medici, Grand Duke of Tuscany, and Marguerite Louise d'Orléans.
He was the second son of Cosimo III de' Medici, Grand Duke of Tuscany, and Marguerite Louise d'Orléans.
Simplify the sentence: He was the second son of Grand Duke Cosimo III and Marguerite Louise d'Orléans. Output: