Classicly

The anecdote of the presentation of the diamond ring by the Emperor to the favorite is told by Miss Pardoe substantially as by Dumas, but it is rejected by most historians of the time. There is no question, however, that the duchess was so alarmed by the condition of the king's health, which was prematurely impaired by his dissolute life, and so apprehensive of her own fate when he should be succeeded by the Dauphin Henri, then a willing slave to the charms of her bitter enemy, Diane de Poitiers, that she exerted herself to the utmost to win the affection of the young Duc d'Orléans, and to procure some sort of an independent government for him. All her plans in that direction were defeated by that prince's death of the plague in 1545.