Vatican Secret Archives popes also survive, including John VIII (pope 872-882) and Gregory VII (pope 1073-1085). Documentation is scant before the 13th century. Since that time, notable documents include items such as Henry VIII of England's request for a marriage annulment, a handwritten transcript of the trial against Galileo for heresy, and letters from Michelangelo complaining he had not been paid for work on the Sistine Chapel. The Archives also support their own photographic and conservation studios. The entrance to the Archives, adjacent to the Vatican Library, is through the Porta di S. Anna in via di Porta Angelica (rione of Borgo). New
Heresy in Christianity of believers when their beliefs challenged, or were seen to challenge, Church authority. Some heresies have also been doctrinally based, in which a teaching was deemed to be inconsistent with the fundamental tenets of orthodox dogma. The study of heresy requires an understanding of the development of orthodoxy and the role of creeds in the definition of orthodox beliefs. Orthodoxy has been in the process of self-definition for centuries, defining itself in terms of its faith and changing or clarifying beliefs in opposition to people or doctrines that are perceived as incorrect. The reaction of the orthodox to heresy has