Cormoran

Local tradition credits him with creating the island, in some versions with the aid of his wife Cormelian, and using it as a base to raid cattle from the mainland communities.

The name "Cormoran" is not found in the early traditions; it first appears in the chapbook versions of the "Jack the Giant Killer" story printed in Newcastle-upon-Tyne and Nottingham, and is not of Cornish origin.

Corineus is associated with St. Michael's Mount, and is credited with defeating a giant named Gogmagog in Geoffrey of Monmouth's influential pseudohistory Historia Regum Britanniae, which may be a prototype of the Cormoran tradition.

According to one version, when Cormoran fell asleep from exhaustion, his more industrious wife fetched greenstone from a nearer source, eschewing the less accessible granite.

In one version, the Trencrom giant threw an enormous hammer over for Cormoran, but accidentally hit and killed Cormelian; they buried her at Chapel Rock.

[8] He regularly raids the countryside, "feast[ing] on poor souls…gentleman, lady, or child, or what on his hand he could lay,"[9] and "making nothing of carrying half-a-dozen oxen on his back at a time; and as for…sheep and hogs, he would tie them around his waist like a bunch of tallow-dips.

After offering the giant's treasure as reward for his disposal, a villein farmer's boy named Jack takes it upon himself to kill Cormoran.

Later, Tom visits the giant and takes pity on him, and arranges for his aunt Nancy of Gulval to sell him her store of eggs and butter.