In 1756 Sir Dudley Ryder died, and Murray immediately claimed the vacant Chief Justiceship. The Duke of Newcastle was panic-stricken by the announcement. It has it said that from the beginning the Attorney-General had been the mainstay of the Government; but at this particular crisis his adherence was essential to its life. The nation was discontented and sullen, as well it might be. War, carried on in almost every part of the world, had resulted in lasting disgrace to England. Minorca had been lost to her through the folly or cowardice of an English admiral, and elsewhere ignominious defeat had attended her arms. Addresses from the Throne poured in, intimations of stopping the supplies were thrown out, and unmistakable references made to the conduct of the chiefs of the Government. Fox, the only capable Minister, resigned his office in fear and disgust, and, at the very moment when Newcastle turned to Murray as to his last hope and refuge in the coming storm, that cautious and resolute official respectfully demanded the promotion to which he had a right. Alarmed for his place and his head, the Duke promised the Attorney-General enough to make the fortunes of six if he would but forego his purpose. He should have the Duchy of Lancaster for life, tellerships and reversions without end for himself and his nephew, Lord Stormont; if he would only stay in the House of Commons until the address was carried he should have a pension of 6,000l. a-year; offers rose as Murray showed himself more firm. Temptation came in vain. Murray averred that he “would on no terms agree to remain in the House of Commons for one session longer, or one month, or one day, even to support the address;” he “never again would enter that assembly.” If he could not be Chief Justice he would not be Attorney-General. That peremptory avowal was enough. To keep Murray from opposition, Newcastle conferred upon the country the only great boon he ever bestowed upon it, and made the Attorney-General Chief Justice of the King’s Bench. The poor Duke gained little by the move. Forced in his naked helplessness to resign, he was succeeded by the Duke of Devonshire, who took care to appoint Pitt Secretary of State, and to give him the lead in the House of Commons.