Louis XII of France

Louis XII (27 June 1462 – 1 January 1515), often known as the "Father of the People", was the King of France from 1498 until his death, and the sole monarch from the Valois-Orléans branch of the House of Valois. As he reigned, Louis pursued an active foreign policy, making repeated attempts to place the Italian city-states of Milan and Naples under French control.

Once Rodrigo Borgia had become Pope Alexander VI and possessed control over the Papal states, the Borgia family allied themselves with Louis to ensure the support of the French army, as well as the loyalty from the French Templar Octavian de Valois.

Reference

• Assassin's Creed: Brotherhood