Iceland, as the Commonwealth neared its end, was torn apart by the jealous feuds of the chieftains. A long series of complications had aroused a bitter hostility to Snorri among his own relatives. In 1229, he found it necessary to ride to the Althing at the head of eight hundred men. The matter did not then come to an open rupture, but in 1239 it finally resulted in a regular battle, in which Snorri's faction was worsted. To avoid consequences he immediately after fled to Norway. Unwisely, he here gave his adherence to Earl Skuli, now at odds with the King, and thereby incurred the active displeasure of the latter; who, evidently fearing the use of Snorri's power against him, forbade him by letter to return to Iceland. The command was disregarded, however, and he presently was back again in his native land. In 1240 Skuli was slain, and shortly afterward King Hakon seems to have resolved upon Snorri's death. Using Arni, a son-in-law of the Icelander, as a willing messenger, he sent a letter to Gissur, another son-in-law, between whom and his father-in-law an active feud was on foot, demanding that he send the latter a prisoner to Norway, or if that were impossible, to kill him. Gissur accordingly, with seventy men at his back, came to Snorri's farmstead Reykjaholt on the night of the 22d of September, 1241, when the old chieftain was mercilessly slain in the cellar, where he had taken refuge, by an unknown member of the band. In spite of his political life, Snorri found opportunity for abundant literary work. The 'Icelandic Annals' say that he "compiled the 'Edda' and many other books of historical learning, and Icelandic sagas." Of these, however, only two have come down to us: his 'Edda' and the sagas of the Norse kings, known since the seventeenth century as the 'Heimskringla,' the best piece of independent prose literature, and in its bearing the most important series of sagas, of all the number that are left to attest the phenomenal literary activity of the Icelanders.