Hengest marched to meet Aurelius in a field called Maesbeli.... Aurelius urged on the Christians, and Hengest encouraged the pagans. As long as they continued with this battle, Eldol never once stopped his attempts to find an opportunity for fighting hand-to-hand with Hengest, but he was not successful; for when Hengest saw that his men were beaten and that by God's grace the Britons were victorious, he fled immediately, making his way to the castle of Kaerconan, which is now called Cunungeburg. Aurelius pursued him and killed or forced into slavery every many whom he overtook on the way. When Hengest saw that Aurelius was following him, he decided not to occupy the caste. He once more drew up his people in their companies, arranging them so that they were ready to join battle again; for he knew well that the castle could never withstand Aurelius and that the only defence left to him lay in sword and spear... Once Aurelius had won the victory... he seized the town of Conan which I have already mentioned earlier on, and there he halted for three days.... Eldol took his sword, led Hengest outside the city, and packed him off to Hell by cutting off his head. Aurelius, who was moderate in all that he did, ordered Hengest to be buried and a barrow of earth to be raised over his body, that being the pagan custom. [VIII.4-6]

Tatlock argues that CONISBROUGH, to which Hengest flees after the Battle of Maesbeli, is Geoffrey's Kaerconan. He points out that the name suggests a fortification earlier than the 12th-century castle now found there (p. 21), a suggestion echoed by the History section of the Conisbrough Castle site. In his notes to Ivanhoe, Walter Scott reproduced the description from Gough's edition of Camden's Britannia, recording the tradition that the barrow outside the castle is said to be Hengest's tomb.