it. Indulgences The Apostolic Penitentiary also specifies actions for which indulgences are granted, either permanently (in the Enchiridion Indulgentiarum), or on special occasions, such as the Year for Priests (19 June 2009 to 19 June 2010), during which a plenary indulgence is granted, on 19 June 2009, on first Thursdays, on 4 August 2009 (150th anniversary of the death of Saint Jean-Marie Vianney), and on 19 June 2010, to all the faithful who attend Mass, pray for priests to Jesus Christ the Eternal High Priest, offer any other good work they do that day, and satisfy the conditions for any plenary indulgence (detachment from all sins, the Sacrament of Penance within the last or next couple of weeks, holy communion (Eucharist in the Catholic Church), and praying for the Pope's intentions). There are also adaptations for those unable to go to church, and daily indulgences available only to priests. Misericordiae vultus In the Papal Bull Misericordiae Vultus (Latin: "The Face of Mercy"), Pope Francis decreed that the Church would observe a Special Jubilee Year of Mercy lasting from the Solemnity of the Immaculate Conception of the Blessed Virgin Mary (a Holy Day of Obligation) on Tuesday, December 8, 2015, until the Solemnity of the Feast of Christ the King of the Universe on the last Sunday before Advent, in November 2016. For this, he allowed certain qualified priests to serve as "Missionaries of Mercy" to each Diocese, with the faculties to absolve even sins that are reserved to the Holy See through the Apostolic Penitentiary. Normally, a priest or even a bishop would not be able to do this unless the person was in danger of imminent death. The Pope has the power, as the earthly absolute sovereign of the Catholic Church, to make this special change for the year. List of major penitentiaries 1216–1405 Nicola de Romanis (1216–1219) Tommaso da Capua (1219–1239) Bishop Guglielmo di Modena, O. Cart. (1244–1251) Hugh of Saint-Cher (ca.1256–1263) Gui Foucault (1263–1265) Henry of Susa (1266–1271) Pierre de Tarentaise (1273–1276) (1276–1279 – probably vacant) Bentivenga de Bentivengis (1279–1289) Matteo di Aquasparta (1289–1302) Gentile Partino (1302–1305) Berengar Fredol (1306–1323) Gauscelin de Jean (ca.1327–1348) Etienne Aubert (1348–1352) Egidio Albornoz (1352–1367) Francesco degli Atti (substitute penitentiary c. 1353–1361) Guillaume Bragose (substitute penitentiary 1361–1367, grand penitentiary 1367) Galhardus de Boscoviridi (regent of the Apostolic Penitentiary 1367–1369) Etienne de Poissy (1369–1373) Jean du Cros (1373–1378) Giovanni d'Amelia (regent of the