Symeon of Thessalonica - Wikipedia, the free encyclopedia
https://en.wikipedia.org/wiki/Symeon_of_Thessalonica
Saint Symeon of Thessalonica (c. 1381–1429) was a monk, bishop and theologian in Greece. ... He was archbishop of Thessalonica from 1416 or 1417, until his death in 1429. ... Jump up to: "Saint Symeon, Archbishop of Thessaloniki ", Ecumenical Patriarchate Orthodox Metropolitanate of Hong Kong and South East Asia, ...
September 15 (Eastern Orthodox liturgics) - Wikipedia, the free ...
https://en.wikipedia.org/wiki/September_15_(Eastern_Orthodox_liturgics)
Sep. 14 - Eastern Orthodox Church calendar - Sep. 16. All fixed commemorations below celebrated on September 28 by Orthodox Churches on the Old Calendar. For September 15th, Orthodox Churches on the Old Calendar commemorate the Saints listed on ... Saint Symeon of Thessaloniki, Archbishop of Thessaloniki ( 1429); Saint ...