During his papacy, Pope Pius VI of Rome attempted to attract the Eastern Churches to Roman Catholicism.
The famous scholar and theologian Joseph el-Abbah, Bishop of Girga responded to the message, refuting its claims and defending the Oriental Orthodoxy Position.
The commander of the Ottoman army stationed in Egypt seized the treasury of the Patriarchate and confiscated all its funds.
Pope John XVIII was a good friend of the famous Coptic layman Ibrahim El-Gohary.
Pope John XVIII departed on 2 Paoni, 1512 A.M. (7 June 1796 AD) He remained on the papal Throne of Saint Mark for 26 years, 7 months, and 16 days.