Their story
Sigebard, a heathen noble of Tongern in what is now Belgium, and his Swabian wife Lusegarde had been childless for seven years. A Christian priest nearby named Cunibert promised them a son if they would give him the child to raise as a Christian. They gladly agreed, but when the boy was born they refused to hand him over to the rough hermit-priest. When the child fell dangerously ill, Sigebard took fright and reluctantly gave him to the priest, who named him Helier.
Helier grew up under Cunibert, learned his letters and some psalms by heart, and the two came to love each other. Sigebard hated seeing his heir living like a monk on roots and water, learning the psalter instead of the boar-spear. In rough pagan fashion he decided the way to separate pupil and tutor was to kill the tutor. The murder was done one night while the old man was reciting his psalter. Helier, woken by the noise, ran into the church and found his teacher dead, his bloody finger resting on the last line he had sung: 'When shall I come to appear before the presence of God?'
Horrified, Helier fled home to the land of the Morini and spent some years fasting and praying at Therouanne. Then he went to St Markulf, who advised him to settle in Jersey. There he lived in a cave in the rock in the middle of the bay that still bears his name, now crowned by a castle, and slept on the bare stone for a few years. Pirates landed on the island and found his hiding place from the screaming of the gulls around the cave mouth, and one of them struck off his head. A companion who had hidden laid the body in a boat once the pirates had sailed and let the winds carry him away, and the body was buried where he came ashore.

