The commander of the Streltsi selected a band of six hundred of the imperial guards to go with him to Obrogensko. Their plan was to seize Peter at night while in his bed. This plot was, however, frustrated by two of the soldiers who revealed it to Peter. He could not at first believe that Sophia would resort to such a terrible crime, and messengers were sent to the city to learn the truth of the matter. These messengers met the imperial guards when they had gone half-way to Moscow; and, concealing themselves by the wayside until the troops had passed, they hastened back by a shorter route to inform Peter of his impending danger. Peter had just time to flee with his wife and mother to the monastery of the Trinity, when the Streltsi reached his palace, and sought him in vain. They returned, discomfited and alarmed, to the Princess Sophia, and reported that Peter had escaped. From his retreat in the monastery, Peter sent a message to Sophia, charging her with having sent the imperial guards to take his life. The princess, greatly alarmed, denied her guilt. The excitement increased. The leading nobles flocked to the monastery to declare their adherence to Peter. Sophia endeavored to keep the Streltsi upon her side, but they at last went over to Peter, and he demanded that the leader of the band who attempted his assassination should be delivered into his hands. This Sophia was obliged to do; and the man was put to the torture, and revealed the plot. He said that the design had been to kill Peter himself, his mother, and several other near relations. The Princess Sophia was accused of being the originator of the plot, and many other persons were also implicated, including Prince Golítsyn, the commander of the Russian forces in the Crimean War. The leader of the band of guards who thus attempted the life of Peter was beheaded, Prince Golítsyn and his family were banished to Siberia, and many others implicated were put to death, imprisoned for life, or banished. Thus ended this conspiracy against the young Czar Peter. The Princess Sophia was shut up in a convent, where she was imprisoned for fifteen years, when she died. Iván, the brother-Czar with Peter, was too feeble and inefficient to take any part in the government, and he died about seven years after this time. The aristocratic party now filled the offices of state, and administered the government.