6th or 7th century. According to the Scots, the relics of Bishop Saint
Cathan rest on the Isle of Bute, where he may have been bishop. They
were so famous that the land was often called Kilcathan. His tomb is
also shown at Tamlacht near Londonderry. There is the possibility that
there were two saints by this name
(Benedictines,
Husenbeth).