King Uttanapada had two queens, named Suniti and Suruci. Suruci was much more dear to the King; Suniti, who had a son named Dhruva, was not his favorite. Once upon a time, King Uttanapada was patting the son of Suruci, Uttama, placing him on his lap. Dhruva Maharaja was also trying to get on the King's lap, but the King did not very much welcome him. While the child, Dhruva Maharaja, was trying to get on the lap of his father, Suruci, his stepmother, became very envious of the child, and with great pride she began to speak so as to be heard by the King himself. Queen Suruci told Dhruva Maharaja: My dear child, you do not deserve to sit on the throne or on the lap of the King. Surely you are also the son of the King, but because you did not take your birth from my womb, you are not qualified to sit on your father's lap. My dear child, you are unaware that you were born not of my womb but of another woman. Therefore you should know that your attempt is doomed to failure. You are trying to fulfill a desire which is impossible to fulfill. If you at all desire to rise to the throne of the King, then you have to undergo severe austerities. First of all you must satisfy the Supreme Personality of Godhead, Narayana, and then, when you are favored by Him because of such worship, you shall have to take your next birth from my womb. (Srimad Bhagavatam 4.8.8-13)
purport by Srila Prabhupada:
The King, of course, was equally affectionate toward both his sons, Uttama and Dhruva, so he had a natural inclination to take Dhruva, as well as Uttama, on his lap. But because of his favoritism towards his queen Suruci, he could not welcome Dhruva Maharaja, despite his feelings. King Uttanapada's feeling was understood by Suruci, and therefore with great pride she began to speak about the King's affection for her. This is the nature of woman. If a woman understands that her husband regards her as a favorite and is especially affectionate to her, she takes undue advantage. These symptoms are visible even in such an elevated society as the family of Svayambhuva Manu. Therefore it is concluded that the feminine nature of woman is present everywhere. Queen Suruci very proudly informed Dhruva Maharaja that to be the King's son was not the qualification for sitting on the lap or throne of the King. Rather, this privilege was dependent on one's having taken birth from her womb. In other words, she indirectly informed Dhruva Maharaja that although he happened to be born of the King, he was considered an illegitimate son because of his birth from the womb of the other queen The small child, Dhruva Maharaja, was naturally affectionate toward his father, and he did not know that there was a distinction between his two mothers. This distinction was pointed out by Queen Suruci, who informed him that since he was a child he did not understand the distinction between the two queens. This is another statement of Queen Suruci's pride. Suruci was so envious of Dhruva Maharaja that she indirectly asked him to change his body. According to her, first of all he had to die, then take his next body in her womb, and only then would it be possible for Dhruva Maharaja to ascend the throne of his father.
