Society of St. Pius X
In September 2006, the Pontifical Commission "Ecclesia Dei" established the Institute of the Good Shepherd, made up of former members of the Society of St. Pius X, in Bordeaux, France, with permission to use the Tridentine liturgy. This step was met with some discontent from French clergy, and thirty priests wrote an open letter to the Pope. Consistently with its previous policy, the Society of St Pius X rejected the move.