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 for Catholic authorities, as reports became increasingly common. The reasons for this are still not fully understood, but the causes for this new period of heresy include popular response to the 11th-century clerical reform movement, greater lay familiarity with the Bible, exclusion of lay people from sacramental activity, and more rigorous definition and supervision of Catholic dogma. The question of how heresy should be suppressed was not resolved, and there was initially substantial clerical resistance to the use of physical force by secular authorities to correct spiritual deviance. As heresy was viewed with increasing concern by the papacy, however, the