Date unknown. Columba, the patron saint of two parishes in Cornwall, is
said to have been a Christian maiden put to death by a heathen king of
Cornwall
(
Benedictines).
Like the majority of Cornish Churches the Parish Church of St Columb is
dedicated in the name of a Celtic Saint-Columba the Virgin. She was a
holy women who probably came from Ireland to preach the Gospel to fellow
Celts here and in Brittany. According to tradition Columba was pursued
up the river by a heathen tyrant who wished her to marry his son, and
was martyred at Ruthvoes, about 2 1/2 miles from St Columb Town.
(Columba in Latin means a Dove- the emblem of tenderness and purity.)
The church occupies a splendid position at the head of the Vale of
Lanherne. The site was quite possibly a large tumulus or burying place
in pre-Christian times. but we know that a church has occupied it for at
least 1000 years.
http://homepages.tesco.net/~k.wasley/St_columb_church.htm