Guru Har Rai
Guru Har Rai (1630–1661) became the seventh Sikh Guru in 1644, aged fourteen, succeeding his grandfather Guru Hargobind. Though he kept the army Hargobind had built, he avoided war, devoting himself to preaching and care for all living things.
In the Mughal succession war he backed the tolerant prince Dara Shikoh against Aurangzeb and provided him with medical care. Summoned to court in 1660 to explain this support, he sent his elder son Ram Rai, who altered a line of the Adi Granth to please Aurangzeb.
Har Rai disowned Ram Rai and named his younger son Har Krishan his successor. He died in 1661, aged thirty-one.