We use Swedish register data with rich family information on both the first and second generation to analyze if growing up in a household with high level of gender equality increase the probability for a more equal use of parental leave for couples who have become parents between 2000 and 2010.  The objectives are threefold. First, analyzing the impact of gender equality within family origins on a specific family demographic behavior - (un)equal use of parental leave - in the second generation. Second, analyzing whether socialization of the husband or wife matters the most for a more equal use of parental leave. Third, analyzing whether characteristics of the father or mother in the first generation matters the most for the second generations division of parental leave. The main finding is that educational level in both husband and wife's family of origin is positively correlated with a more equal use of parental leave, even after controlling for the couple's own educational level. Especially high maternal education in both the husband and wife’s family of origin predicts a more equal use of parental leave. The wife’s parents’ educational level has a stronger impact than the husbands’ parents' educational level.