Lundy takes its name from the puffins, in Scandinavian Lund, that at all times frequented it; but it had an earlier Celtic name, Caer Sidi, and is spoken of as a mysterious abode in the Welsh Mabinogion.

From an early period, its peculiar position, commanding the entrance to the Bristol Channel, its inaccessibility, its remoteness, rendered it a resort of pirates. Thomas Wyke, Canon of Oseney, in 1238, speaks of it as the haunt of a notable pirate, William de Marisco. This William had a son Jordan, who held the island in defiance of the King, and descended from it to make raids on the adjoining coasts. The island had been granted by Henry II to the Templars, but they had been unable to dislodge the De Mariscoes and obtain possession of it. A special tax was levied on the counties of Devon and Cornwall for the siege of Lundy and the defence of their maritime ports, but it does not seem that Sir William was ever dispossessed. Marisco was one of the prisoners captured from the French in a sea fight in 1217, and was afterwards reinstated in his island, along with his wife and children, who had also been taken. In 1222 he removed to Lundy some guns he had taken from his lordship of Camley in Somerset, and, turbulent to the end, he was, in 1233, amerced in a fine of 300 marks to the King for his ransom.

His younger son, Sir William, was outlawed in 1235 for slaying in London an Irish messenger. His elder brother Jordan, or Geoffrey, had made a descent on Ireland and was killed at Kilkenny in 1234.

Sir William got into further trouble on an accusation of an attempt to assassinate Henry III, and this led to the breaking up of the robbers’ nest, and its being wrested from the Marisco family for many years.

But before telling the story, it will be well to say a few words about the castle erected by this turbulent family, of which some remains may still be seen. It was probably originally erected by the first Sir Jordan, in the reign of Henry II.

The keep is all that now remains, and it is turned into cottages. The basement wall is nine feet thick, and the lines of bastion and fosse may still be traced. Two engravings and a plan of the castle, as it was in 1775, appear in Grose’s Antiquities. He thus describes it:—

“The castle stood on two acres of ground, and was surrounded by a stone wall, with a ditch, except towards the sea, where the rock is almost perpendicular. The ditch is very visible, and part of the wall. The walls of the citadel (i.e. keep) are very perfect, of a square form. It is converted into cottages, the turrets, of which there are four, one at each angle, serving as chimneys. The S. W. wall is 51 feet, the N. W. wall 38 feet, in length. In front of the house five guns were placed. The garrison was supplied with water from a spring, which rises above the (mansion) house. It was conveyed from thence by earthen pipes. At the extremity of the rock, within the fortification, is a cave, supposed to be cut out of the rock for a store-room, or magazine, for the garrison.”

We come now to the attempted assassination. Matthew Paris tells the story under the date 1238, in the reign of Henry III.

“On the day after the Nativity of St. Mary, a certain learned esquire came to the King’s Court at Woodstock pretending that he was insane, and said to the King, ‘Resign thy kingdom to me’; he also added, that he bore the sign of royalty on his shoulder. The King’s attendants wanted to beat him, and drive him away from the royal presence, but the King interfered, saying, ‘Let the madman rave—such people’s words have not the force of truth.’ In the middle of the night, however, the same man entered the King’s bedchamber window, carrying an open knife, and approached the King’s couch, but was confused at not finding him there. The King was, by God’s providence, then sleeping with the Queen. But one of the queen’s maids, Margaret Bisett, was by chance awake, and was singing psalms by the light of a candle (for she was a holy maid and one devoted to God), and when she saw this madman searching all the private places to kill the King, she was greatly alarmed, and began to utter repeated cries. At her cry the King’s attendants awoke, and leaped from their beds with all speed, and running to the spot, broke open the door, which this robber had firmly secured with a bolt, and seized him, and notwithstanding his resistance, bound him fast. He, after a while, confessed that he had been sent to kill the King by William de Marisco, son of Geoffrey (or Jordan) de Marisco, and he stated that others had conspired to commit the same crime. On learning this, the King ordered him to be torn limb from limb by horses, at Coventry.”

The evidence incriminating William de Marisco was clearly worthless. If the would-be assassin had not been insane he would not have asserted a claim to the crown and drawn attention to himself before making the murderous attempt. De Marisco had nothing to gain by the King’s death, and he may certainly be acquitted of participation.