St Cyril the Bishop of Turov - Orthodox Church in America
https://oca.org/saints/lives/2012/04/.../101221-st-cyril-the-bishop-of-turo...
St Cyril the Bishop of Turov. Commemorated on April 28. Saint Cyril, Bishop of Turov, was born of rich parents in the thirties of the twelfth century in the city of ...
Cyril of Turov - Wikipedia, the free encyclopedia
https://en.wikipedia.org/wiki/Cyril_of_Turov
Kirill of Turov (alternately Cyril of Turov) 1130–1182) was a bishop and saint. He was one of the first and finest theologians of Kievan Rus'; he lived in Turov, now southern Belarus. His feast day in the Orthodox Church is on April 28.
Butler's Lives of the Saints: April - Page viii - Google Books Result
https://books.google.co.uk/books?isbn=0860122530