The following is from a work-in-progress called The Mahabharata: a Book Report, in which I'm slowly reading through the Hindu epic poem The Mahabharata, and writing a book report on what I read.
King Samtanu married Satyavati the fisher-girl and she bore him two sons named Citrangada and Vicitravirya. After Samtanu died, the eldest son Citrangada became king. Unfortunately, he died in battle. So Vicitravirya became king, even though he was only a boy.
When the time came for young king Vicitravirya to marry, Bhisma (for some reason) kidnapped the three daughters of the king of Kasi. No one could stop him because Bhisma was super strong and badass. Learning that one of the three princesses was already engaged to someone else, Bhisma let her go, and returned to Hastinapura with two princesses for king Vicitravirya to marry. Their names were Ambika and Ambalika. Unfortunately, king Vicitravirya died of tuberculosis before he fathered a child.
Now the great kingdom of Hastinapura was kingless! What could be done?