Saint Alexander lived in the years of Constantine the Great. He is one of the holy Fathers of the first Ecumenical Council, which took place in 325 in Nicaea, in which they condemned the heresy of Arius. After this, Alexander, although an old man of 70 years, agreed to tour Thrace, Macedonia, Thessaly and the rest of Greece, to teach and make known the correct doctrines of the decisions of the Council of Nicaea. Then, from the position of Patriarch, Alexander responded worthily to the difficult circumstances of the times. Saint Alexander died peacefully in 337 AD. and his memory is commemorated on August 30.