So here Mahārāja Parīkṣit, son of Uttarā, but he married his maternal uncle's daughter. That was permissible. Still it is permissible. This kind of marriage is considered very aristocratic, to marry the daughter of maternal uncle. So Arjuna also married the daughter of maternal uncle. Kuntī is the sister of Vasudeva, Kṛṣṇa's father, and Subhadrā is the daughter of Vasudeva. So he also married. Except in Southern India, this process is now no longer existing. In Bengal and other provinces of India, they do not marry the first cousin. So that is the marriage system. But in southern India, still, to marry the daughter of maternal uncle is considered as very aristocratic. So this system was current five thousand years ago also. So Mahārāja Parīkṣit married his uncle's daughter, uttarasya tanayām. Tanayā means daughter. Uttarasya tanayām upayema. And her name was Irāvatī, Irāvatī.
So in that, in the womb of Irāvatī, Mahārāja Parīkṣit begotten four sons. The first one's name is Janamejaya. Ādi. Ādi means "beginning with." He begotten four sons, beginning with Janamejaya. The history of Janamejaya is also very nice.