After the martyrdom of his father, he grew up under the tutelage of his mother Gujri and teacher Kripal Chand.  
His autobiographical poem Vichitra Natak describes him as the descendant of Lava, son of Rama.  After the martyrdom of his father, he grew up under the tutelage of his mother Gujri and teacher Kripal Chand.  He lost the Battle of Chamkaur against Aurangzeb, who slew the rest of his family, which was shortly after this man founded the militaristic society known as the Khalsa.  He became the last in line of a series of religious leaders after naming the Adi Granth as his successor.  FTP, identify this son of Tegh Bahadur and the tenth and final guru of Sikhism.
His autobiographical poem Vichitra Natak describes him as the descendant of Lava, son of Rama.  
Gobind Singh or Gobind Rai