High Quality Content by WIKIPEDIA articles! Sahibzada Zorawar Singh was the third of Guru Gobind Singh's four sons. He and his younger brother, Sahibzada Fateh Singh are among the most hallowed martyrs in Sikhism. A combination of Mughals and hillmen besieged Anandpur Sahib on the orders of emperor Aurangzeb. The stock of food in the town ran out. The Mughals promised to leave the Sikhs alone if they would hand over the fortress of Anandpur. To this Guru Gobind agreed and left the town with his family and a small band of retainers.