Sophia first tried to appease them and reduce them to order by conciliatory measures. From the Monastery of the Trinity, to which she had herself now retreated for safety, she sent a message to Couvansky and to the other chiefs of the army, thanking them for the zeal which they had shown in revenging the death of her brother, the late emperor, and in vindicating the rights of the true successor, John, and promising to remember, and in due time to reward, the great services which they had rendered to the state. She added that, now, since the end which they all had in view in the movement which they had made had been entirely and happily accomplished, the soldiers should be restrained from any farther violence, and recalled to their quarters. This message had no effect. Indeed, Couvansky, finding how great the power was of the corps which he commanded, began to conceive the idea that he might raise himself to the supreme command. He thought that the Guards were all devoted to him, and would do whatever he required of them. He held secret conferences with the principal officers under his command, and endeavored to prepare their minds for the revolution which he contemplated by representing to them that neither of the princes who had been proclaimed were fit to reign. John, he said, was almost an imbecile, on account of the numerous and hopeless bodily infirmities to which he was subject. Peter was yet a mere boy; and then, besides, even when he should become a man, he would very likely be subject to the same diseases with his brother. These men would never have either the intelligence to appreciate or the power to reward such services as the Guards were capable of rendering to the state; whereas he, their commander, and one of their own body, would be both able and disposed to do them ample justice. Couvansky also conceived the design of securing and perpetuating the power which he hoped thus to acquire through the army by a marriage of his son with one of the princesses of the imperial family. He selected Catharine, who was Sophia's sister--the one next in age to her--for the intended bride. He cautiously proposed this plan to Sophia, hoping that she might be induced to approve and favor it, in which case he thought that every obstacle would be removed from his way, and the ends of his ambition would be easily and permanently attained.