Multiple choice general knowledge history Bhisma was whose son? Yamuna Ganga Gandhari Satyavati Reveal answer Fill a bubble to check yourself B Correct answer Explanation In the Mahabharata, Bhishma was the son of King Shantanu and the river goddess Ganga, which is why he is also known as Gangaputra. Yamuna, Gandhari, and Satyavati are incorrect.