O’Cahan was the first of the remnant to taste the fruit of the downfall of Gaelic power which he so largely brought about. Instead of reaping the fulfilment of the hope that his bargain of 1602 would be carried out, Sir Donal was seized by Captain Phillips and, without cause assigned or pretence of trial, was lodged in Dublin Castle, and thence transported to the Tower. There he was kept a close prisoner till his death twenty years later. His treachery to O’Neill met its reward in the only sterling current at Chichester’s mint. Other native aids of the Deputy were similarly guerdoned. Queen Elizabeth had no sturdier ally in Ulster than Niall Garve O’Donnell. In the belief that he would be rewarded with the chieftaincy of Tirconnell he gave her precious and constant help. When peace came Niall expected a Patent, but the royal pardon to the Earls forbade such a hope. Some years later he applied for a grant of the fishery of Lough Foyle as part of his inheritance. To make him this award would have been but a stunted acknowledgment of his loyalty, but Chichester had now seized that prize for himself. Hamilton was advanced from Tyrone to Donegal and put in possession when the Earls fled. So the Deputy, on the 22nd May, 1608, suavely replied to Niall Garve:— “You shall have all the fishing which is the King’s on the Tirconnell side, and you may make use of it for this season; but what belongs to private men, as Mr. Hamilton and others, we cannot take from them without agreeing with them, which you may do if you desire it for your profit.” This, of course, was mere byplay, and in a few months Niall Garve discovered that, as the Tower was so convenient for the caging of O’Cahan, he, too, was to be similarly housed. Blameless of aught against the State save the wish to have a living in his own glens, the Queen’s O’Donnell was arrested and deported to London. With him went his son, Naghten, and his two brothers. Everything was done quietly, without trial, charge, indictment, or legal parade. There was no scandal—not even a court martial. Niall Garve and his son, like O’Cahan, spent the rest of their lives in the Tower. His brothers, when the Plantation was complete, were set free, only to find on reaching their native shore that their lands were partitioned among strangers.