Guru Har Rai

Guru Har Rai is notable for maintaining the large army of Sikh soldiers that the sixth Sikh Guru had amassed, yet avoiding military conflict. He supported the moderate Sufi influenced Dara Shikoh instead of conservative Sunni influenced Aurangzeb as the two brothers entered into a war of succession to the Mughal Empire throne.
After Aurangzeb won the succession war in 1658, he summoned Guru Har Rai in 1660 to explain his support for the executed Dara Shikoh. Guru Har Rai sent his elder son Ram Rai to represent him. Aurangzeb kept Ram Rai as hostage, questioned Ram Rai about a verse in the Adi Granth – the holy text of Sikhs at that time. Aurangzeb claimed that it disparaged the Muslims. Ram Rai changed the verse to appease Aurangzeb instead of standing by the Sikh scripture, an act for which Guru Har Rai is remembered for excommunicating his elder son, and nominating his younger son Har Krishan to succeed him. Har Krishan became the eighth Guru at age five after Guru Har Rai's death in 1661. Provided by Wikipedia