In 1630 Drummond again began to reside permanently at Hawthornden, and in 1632 he married Elizabeth Logan, by whom he had five sons and four daughters. In 1633 Charles made his coronation-visit to Scotland; and Drummond's pen was employed in writing congratulatory speeches and verses. He was involved in organising the King's triumphal procession through Edinburgh. As Drummond preferred Episcopacy to Presbytery, and was an extremely loyal subject, he supported Charles's general policy, though he protested against the methods employed to enforce it. When John Elphinstone, 2nd Lord Balmerino was put on his trial on the capital charge of retaining in his possession a petition regarded as a libel on the king's government, Drummond in an energetic "Letter" (1635) urged the injustice and folly of the proceedings. About this time a claim by the earl of Menteith to the earldom of Strathearn, which was based on the assertion that Robert III, husband of Annabella Drummond, was illegitimate, roused the poet's pride of blood and prompted him to prepare an historical defence of his house.