Translate the following English sentence to French:
"I was therefore amazed to learn that less than three months after the event, both Mrs Péry, on behalf of the presidency and Mrs Diamantopoulou, on behalf of the Commission had completely changed tack."
J'ai donc été surprise d'apprendre que moins de trois mois plus tard, tant Mme Péry, au nom de la présidence, que Mme Diamantopoulou, au nom de la Commission, expriment un tout autre point de vue.