The lords of the Privy Council, with the king's consent, gave O'Neill authority for martial law, 'to be executed upon any offenders that shall live under him, the better to keep them in obedience.' It was ordered that the king's garrisons should not meddle with him or his people.

The king also invested O'Donel with all the lands and rights of ancient time belonging to his house, excepting abbeys and other spiritual livings, the castle and town of Ballyshannon, and 1,000 acres adjoining the fishing there.

He also received the style and title of Earl of Tyrconnel, with remainder to his brother Caffar, the heirs male apparent being created Barons of Donegal.

He was formally installed in Christ Church Cathedral on the 29th of September following, in presence of Archbishop Loftus and a number of high officials.

Tyrone, however, was dogged by spies while he was in London, and one Atkinson swore informations to the effect that he was in the habit of entertaining a Jesuit named Archer, who was intriguing with the foreign enemies of England, and who was held by Irish royalists for 'the most bloody and treacherous traitor, who could divert Tyrone and all the rest from the king, and thrust them again into actual rebellion.' In the meantime, Sir George Carew was pursuing a policy in Ireland which must of necessity involve the north in fresh troubles.