A king who thinks more about his loves and his hunts than the future of his kingdom. A regent who holds the reins and foils the blows of fate. A torn court. A merciless showdown between Diane de Poitiers and the Duchess of Etampes. A young Florentine offered in marriage to one of the Sons of France. Alliances, betrayals, passions ... And in this dangerous universe, the journey of two brothers, who became royal messengers, whom fate has placed at the forefront of history.