Guru Har Krishan

Guru Har Krishan ([ɡʊru həɾ kɾɪʃən]; 23 July 1656 – 30 March 1664) was the eighth of the ten Sikh Gurus. At the age of 5, he became the youngest Guru in Sikhism on 7 October 1661, succeeding his father, Guru Har Rai.

He is also known as Bal Guru (Child Guru). He died at age eight during a epidemic in Delhi, and his granduncle Guru Tegh Bahadur became the next Guru of the Sikhs. He had the shortest tenure as Guru, lasting only 2 years, 5 months and 24 days.