sentences:  Tsitsianov's death on 20 February 1806 and the breakup of the Russian offensive persuaded Ibrahim Khalil Khan, in the summer of 1806, to repudiate his allegiance to the Russians, and resubmit himself to the shah; he then asked the shah for aid in ousting the Russian garrison.As the Persian army approached Shusha, Ibrahim Khan left the fortress and camped outside.On 2 June 1806, the Russians, instigated by Ibrahim Khalil Khan's grandson and fearful of their own vulnerability, attacked the camp and killed Ibrahim Khan, one of his wives, a daughter, and his youngest son.