April 6 (Eastern Orthodox liturgics) - Wikipedia, the free ...
https://en.wikipedia.org/wiki/April_6_(Eastern_Orthodox_liturgics)
Saint Winebald (Winewald, Vinebaud), a monk at Saint-Loup-de-Troyes in ... Saint Berthanc (Berchan), a monk at Iona in Scotland and later Bishop of Kirkwall in ...
The Book of Saints: - Google Books Result
https://books.google.co.uk/books?id=hpfmCgAAQBAJ
Saint Augustine's Abbey, Aeterna Press - 2015 - Religion
BERTHANC (BERCHAN) (St.) Bp (April 6) (9th cent.) A Saint of this name occurs in all the Scottish Kalendars. He is described as Bishop of Kirkwall in the ...