Mary, Queen of Scots, at Carlisle Castle

In 1568 he was given a delicate mission mediating between the exiled Mary, Queen of Scots and her half-brother, the Regent Moray. He went to Carlisle and spoke to Mary on 13 June. Middlemore noted her "great passion and weeping, complaining of her evil usage and contrarious handling to her expectation". Mary realised her chances of meeting Queen Elizabeth were fading,