The Supreme Personality of Godhead said: My dear Prahalad, O most pure, O great saintly person, your father has been purified, along with twenty-one forefathers in your family. Because you were born in this family, the entire dynasty has been purified. Whenever and wherever there are peaceful, equipoised devotees who are well-behaved and decorated with all good qualities, that place and the dynasties there, even if condemned, are purified. 

[- Srimad Bhagavatam 7.10.18 - 19]