According to Mahabharat, Ganga was the wife of

Satyavati, you might know her as wife of Shantanu, the great grandmother of Pandavas and Kaurava princes, the cause of celibacy oath of her step

After agreeing to the terms of the marriage, the king saw that when a son was born, his wife floated them in the river Ganges After enduring this ordeal

shantanu naidu and mihira Satyavati, you might know her as wife of Shantanu, the great grandmother of Pandavas and Kaurava princes, the cause of celibacy oath of her step

shantanu naidu mihira Satyavati, you might know her as wife of Shantanu, the great grandmother of Pandavas and Kaurava princes, the cause of celibacy oath of her step