Saints Sergius and Bacchus Church

Saints Sergius and Bacchus Church is traditionally believed to have been built on the spot where the Holy Family, Joseph, Mary and the infant Jesus Christ, rested at the end of their journey into Egypt. They may have lived here while Joseph worked at the fortress.
The church is of significant historical importance, and in fact, it is where many patriarchs of the Coptic Church were elected. The first to be elected here was Patriarch Isaac (681-692) It is the episcopal church of Cairo, and it was the episcopal See of Masr (the district of Old Cairo) that replaced the former See of Babylon. Many bishops of the See were consecrated in the Church until the reign of Patriarch Christodulus (1047–1077).