Theon of Alexandria Theon of Alexandria Theon of Alexandria (; ; 335 – c. 405) was a Greek scholar and mathematician who lived in Alexandria, Egypt. He edited and arranged Euclid's "Elements" and wrote commentaries on works by Euclid and Ptolemy. His daughter Hypatia also won fame as a mathematician. Little is known about the life of Theon. He made predictions and observances of solar and lunar eclipses in 364 which show he was active at that time, and he is said to have lived during the reign of Theodosius I (379–395). The biographical tradition of the tenth century Byzantine "Suda" defines Theon
Patriarch Peter VII of Alexandria Patriarch Peter VII of Alexandria Petros VII (September 3, 1949 – September 11, 2004) was the Greek Orthodox Pope and Patriarch of Alexandria and all Africa from 1997 to 2004. During his reign, Petros VII was credited with reviving the Greek Orthodox churches in Africa by increasing the churches' attendance of about 250,000 people. Petros was born Petros Papapetrou () in Sichari, Kyrenia District, Cyprus on September 3, 1949. He was the oldest son of a Greek Orthodox family and both his father and grandfather were priests. At the age of 12, Petros enrolled at the Machairas Monastery. Then at