Comgall afterwards baptized her
Martyrological notice
27. My Lord loved Muirgein, i.e. the birth of the sea, i.e. abbot of Glen Uissen, as Oengus says. Or Muirgein, daughter of Aedan, in Belach Gabrain, qui etc. Or Muirgein, i.e. the birth of the sea, i.e. Liban daughter of Eochaid, son of Muirid, from whom Loch n-Echach (Lough Neagh) is named. 'Tis she that was three hundred years in Loch n-Echach, till Beoan, St. Comgall's fisherman, caught her in his net, and Comgall afterwards baptized her, and she herself told her dealings to Comgall, and went to heaven, et narravit etc.
Historical martyrology witness · The Martyrology of Oengus the Culdee (1905)
27. My Lord loved Muirgein, i.e. the birth of the sea, i.e. abbot of Glen Uissen, as Oengus says. Or Muirgein, daughter of Aedan, in Belach Gabrain, qui etc. Or Muirgein, i.e. the birth of the sea, i.e. Liban daughter of Eochaid, son of Muirid, from whom Loch n-Echach (Lough Neagh) is named. 'Tis she that was three hundred years in Loch n-Echach, till Beoan, St. Comgall's fisherman, caught her in his net, and Comgall afterwards baptized her, and she herself told her dealings to Comgall, and went to heaven, et narravit etc.