Summorum Pontificum (English: Of the Supreme Pontiffs) is an Apostolic Letter of Pope Benedict XVI, issued motu proprio (i.e., on his own initiative), by which he specified the circumstances in which priests of the Latin Church may celebrate Mass according to what he called the "Missal promulgated by Blessed John XXIII in 1962" (the latest edition of the Roman Missal in the form known as the Tridentine Mass or Traditional Latin Mass), and administer most of the sacraments in the form used before the liturgical reforms that followed the Second Vatican Council.
First Sentence: Summorum Pontificum cura ad hoc tempus usque semper fuit, ut Christi Ecclesia Divinae Maiestati cultum dignum offerret, «ad laudem et gloriam nominis Sui» et «ad utilitatem totius Ecclesiae Suae sanctae».
The document, dated 7 July 2007 and in force since 14 September 2007, was released along with a letter in which Pope Benedict explained his reasons for issuing it.
The document replaced the motu proprio Ecclesia Dei of 1988, which allowed individual bishops to establish places where Mass could be said using the 1962 Missal. It granted greater freedom to use the Tridentine liturgy in its 1962 form, stating that all priests may freely celebrate Mass with the 1962 Missal privately, without having to ask for permission from anyone. It also provided that, "in parishes where a group of the faithful attached to the previous liturgical tradition stably exists, the parish priest should willingly accede to their requests to celebrate Holy Mass according to the rite of the 1962 Roman Missal", and should "ensure that the good of these members of the faithful is harmonised with the ordinary pastoral care of the parish, under the governance of the bishop" (Article 5).