Fanchea was a 6th-century Irish saint who lived near Clogher. As the daughter of Conall Derg and Briga, she chose a religious life over marriage, eventually establishing the Rossory Monastery on the shores of Lough Erne with her sister Darenia. She is most notably remembered for her influence on her brother, the warrior prince Enda of Arran, whom she successfully guided toward monasticism through spiritual lessons regarding mortality and divine judgment.