Intimately conversant with official routine, and thoroughly master of the details of every department of the Government, he acquired a familiar knowledge of all the appointments in the gift of the Ministry, and reserved to himself the right of controlling them. Nor was this monopoly of patronage confined to offices of importance or considerable emolument; it descended even to commissions in the army, and the disposal of small places which custom as well as expediency had delegated to the heads of those branches of service to which they belonged. His Majesty's pertinacity on these points frequently precipitated painful embarrassments of a personal nature, entailed much disagreeable correspondence, and sometimes produced misunderstandings and alienations of far greater moment than the paltry considerations in which they originated. Amongst the numerous instances in which His Majesty insisted on the preservation of patronage in his own hands, one of the most conspicuous was his stipulation with the Marquis of Rockingham for unconditional power over the nomination of the household, at a moment when the exigency of public affairs compelled him to surrender other points of infinitely greater importance. We shall find in the course of the following letters that His Majesty's desire to advance the interests of particular individuals interfered seriously, on some occasions, with the convenience of the public service.
The same spirit guided His Majesty's conduct, as far as the forms of the Constitution would permit, in his choice of Ministers. He had strong personal likings and antipathies, and rather than consent to have a Ministry imposed upon him consisting of men he disapproved, he would have suffered any amount of difficulty or inconvenience. He prevailed upon Lord North to remain in office three years in the face of sinking majorities, and against his Lordship's own wishes, for the sole purpose of keeping out the Whigs, whom he regarded with a feeling of the bitterest aversion. Good reasons, no doubt, might be suggested for this passionate abhorrence of the Whigs, who, independently of party antecedents, had given His Majesty much cause of uneasiness, by their strenuous opposition to the measures of his favourite Ministers, and by their alliance with his son. So deeply was this feeling rooted in His Majesty's mind, that when a junction with that party seemed to be all but inevitable in March, 1778, he threatened to abdicate rather than be "trampled on by his enemies." Four years afterwards he explicitly repeated the same threat under the excitement of an adverse division; and it was supposed by those who were best acquainted with the firmness of his resolution that, had he been forced to extremities, he would have carried his menace into execution.