Final answer:
Ismail was not a Mughal leader; he was a Safavid ruler in Persia. The Mughal leaders mentioned are Babur, Akbar, and Aurangzeb. Guru Tegh Bahadur was a Sikh leader executed by Aurangzeb.
Step-by-step explanation:
All of the following were Mughal leaders EXCEPT Ismail. Babur, Akbar, and Aurangzeb were all notable emperors of the Mughal dynasty. The Mughal Empire was founded by Babur after his conquest of Delhi in 1526 and reached its zenith under Akbar, who was known for his military conquests and religious tolerance. Aurangzeb, another prominent Mughal ruler, was known for his strict religious policies and expansion of the empire. However, Ismail was not a Mughal leader; he was a Safavid ruler in Persia, reinforcing Shi'ite Islam and overseeing a cultural renaissance.
Guru Tegh Bahadur, a leader of the Sikh religion, was executed by Aurangzeb. The Mughals, Ottoman, and Safavids are often referred to as the "gunpowder empires" for their use of firearms in military conquests, and each had its distinctive influence in the regions they ruled.