The story
He became the tenth Guru at nine, when his father Guru Tegh Bahadur was executed in Delhi for defending the right of Kashmiri Hindus to their own religion.
At Anandpur in 1699 he asked a crowd for a head. Five men came forward one after another; he took them behind a tent and returned with a sword each time, then brought all five out alive. Those five were the first of the Khālsā, and he then asked them to initiate him in turn.
He lost all four of his sons and his mother to the Mughal wars — two in battle, two bricked into a wall at Sirhind aged nine and seven. He ended the line of living Gurus by giving the succession to the Gurū Granth Sāhib itself.