Guru Nanak Dev
Sri Guru Nanak Dev ji (15 April 1469 – 22 September 1539) was the founder of Sikhism, and was the first of the ten Sikh Gurus. His father's name was Kalyan Chand Das Bedi who is commonly referred to as Mehta Kalu. His mother's name was Mata Tripta. Both his parents were Hindu Khatris and Guru Nanak Dev ji was born into a Hindu Khatri landowning family. The last Guru said that there would be no more Gurus after him and Sikhs would be taught by the Sikh holy book, which is called Guru Granth Sahib ji. The word "Guru" means "teacher" in Sanskrit. His two sons were Sri Chand and Lakshmi Das.