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
Military in Vatican City Noble Guard, the Palatine Guard, and the Papal Gendarmerie Corps) were retained, but restricted their activity to the Vatican in Rome. Upon the 1929 formation of the Vatican City State, a unique form of sovereignty was defined. Under this agreement sovereignty is vested in the much more ancient Holy See, which is an ecclesiastical jurisdiction; but that sovereignty is exercised over the actual nation state of the Vatican City, an area of 110 acres defined in a map appended to the treaty, together with certain other properties formally located within the Italian state, but granted extraterritoriality. The Vatican City State