Soon-Yi was adopted by Mia Farrow and Farrow’s second husband, Andre Previn, so technically she was not Woody Allen’s child at all. He and Farrow went on to adopt a couple more children themselves and had one biological child, too.
The scandal was composed of several factors. The first was Soon-Yi Previn’s age as compared to Allen (22 versus 57) with the implication (unproven) that perhaps the relationship started earlier than that, the second that Allen and Previn had an affair while he was still partnered with Mia Farrow, and third, that while neither her biological nor her adoptive father, Allen still acted as a father figure for part of Soon-Yi’s childhood. In addition, Mia Farrow claimed Allan molested their jointly adopted daughter Dylan O’Sullivan Farrow. While not found to be unequivocally true, it has resulted in Allen being estranged from the three children he raised with Farrow.
The current Allens have two adopted daughters.