 In 1540 Francis I appointed Cardinal de Tournon Chancellor of the Ordre de Saint-Michel.From 1543 to 1556 the Cardinal's attending physician was the famous Guillaume Rondelet.On 22 July 1544 Cardinal de Tournon was elected Abbot of the Benedictine Abbey (Congregation of S. Maur) of Ambronay ("Ambroniacum") in the Diocese of Lyon by the monks; he held the post until 1550.