On the marriage of his son Henry to Lady Elizabeth Stewart (daughter of Esmé Stewart, 3rd Duke of Lennox) without the king's approval, he was imprisoned in the Tower by Charles I, shortly after his accession, but was released at the instance of the Lords in June 1626, being again confined to his house till March 1628, when he was once more liberated by the Lords. In the debates on the Petition of Right, while approving its essential demands, he supported the retention of some discretionary power by the king in committing to prison. The same year he was reconciled to the king and again made a privy councillor.