Rognvald finally proved successful, and how he fulfilled his vow the Cathedral Church of St Magnus still shows. St Rognvald—for in 1192 he too was canonised—was at once the most genial and the most accomplished of the Jarls, and one of the great characters of the _Orkney Saga_. He made a famous voyage to Palestine (1152-1155), fighting, love-making, and poetising by the way. Incidental to his great struggle for power with St Rognvald, Jarl Paul had in 1137 been seized by the famous viking Swein Asleifson and carried off to Athole, where he was placed in the hands of Maddad, Earl of Athole, who had married his half-sister Margaret. The whole affair is shrouded by mystery, but Countess Margaret appears to have intrigued both with her brother and with Jarl Rognvald to have her son Harald, a boy of three, conjoined with Rognvald in the Jarldom. In the sequel Jarl Paul mysteriously disappears, murdered, according to one account, at the instigation of the Countess; and in 1139 Jarl Rognvald accepted the young Harald Maddadson as his partner. With occasional intervals of friction this somewhat oddly assorted pair ruled together until 1159, when the checkered career of the genial and many-sided St Rognvald was closed by his assassination in a personal quarrel in Caithness. Thereafter Harald ruled the Islands alone until his death in 1206. A powerful and overbearing man, he quarrelled with John, Bishop of Caithness, blinded the prelate and caused his tongue to be cut out; barbarities which brought King William the Lyon to the borders of Caithness with an army (1202). Harald bought off the King, and on the whole maintained his own in Caithness, although all the circumstances of the times show that a now feudalised Scotland is becoming increasingly able to reassert its authority in these northern parts. Harald got into difficulties with his Norwegian suzerain, King Sverrir, who deprived him of Shetland, which was not again conjoined with Orkney until two centuries later. Harald was succeeded by two sons, David and John, the former of whom died in 1214. Jarl John, like his father, came into conflict with the Church and with Scotland. Adam, Bishop of Caithness, successor to the mutilated Bishop John, having proved too exacting in the collection of Church dues, the laity appealed to the Jarl, who, however, declined to intervene. Whereupon the outraged laymen burnt the Bishop in a house into which they had thrust him. King Alexander II, came with an army, and not only heavily fined the Jarl, but also had the hands and feet hewn off eighty men who had been present at the Bishop’s death. Jarl John was slain in a brawl at Thurso in 1231, and, as he left no son, the line of the Norse Jarls of Orkney ended. [Illustration: St Magnus’ Cathedral, Kirkwall, from South-East] [Illustration: Tankerness House and St Magnus’ Cathedral]