people established a promontory fort overlooking the sea at Shanoon (referred to in 1832 as meaning the 'Old Camp' but more likely Canon Power's Sean Uaimh, "Old Cave") at a point known for centuries as Black Nobb, where the old pilot station now stands, and underneath which a cave runs. Henceforth the place was referred to as Dún Mór, meaning the "Great Fort".

King Henry II granted the knight Heverbricht