September 20 (Eastern Orthodox liturgics) - Wikipedia, the free ...
https://en.wikipedia.org/wiki/September_20_(Eastern_Orthodox_liturgics)
Jump to Post-Schism Orthodox Saints - Saint Eustathius of Thessalonica, Archbishop of Thessalonica ... Saint Oleg Romanovich, Prince of Bryansk (1285) ...
List of Russian saints (until 15th century) - Wikipedia, the free ...
https://en.wikipedia.org/wiki/List_of_Russian_saints_(until_15th_century)
Saints in the Russian Orthodox Church are confirmed by canonization which lists the decedent ..... 13 September 14th Week after Pentecost ...... 7, Right-Believing Prince Oleg Romanovich of Bryansk (13th century) Благоверный князь Олег ...
St Oleg the Prince of Briansk - Orthodox Church in America
https://oca.org/saints/lives/2010/09/20/102680-st-oleg-the-prince-of-briansk
St Oleg the Prince of Briansk. Commemorated on September 20. Holy Prince Oleg Romanovich of