Following the highly publicized separation between Mia Farrow and Woody Allen in the early 90s, it had been made clear during the court procedures that Ronan Farrow's father was the iconic director; however, a while back everything came into doubt when his mother publicly stated that he may have been the son of her first husband, Frank Sinatra.

Not only was the separation between the actress and the director a nasty one at the time, there has also been an ongoing issue as there are claims that Allen sexually abused Dylan, a daughter they'd adopted together; more than twenty years later, that controversy remains along with the public question on who is Ronan Farrow's father.

The issue regarding Ronan Farrow's father began in November 2013, when Mia was the subject of a Vanity Fair piece in which she spoke about her human rights work and her family, and she raised doubts on the subject, besides putting the Dylan Farrow situation back in the public eye after it failed to reach court in 1992.

As Yahoo! Celebrity reports, Nancy Sinatra, Frank's daughter and sometimes collaborator when he was alive, has spoken out for the first time on the subject of who Ronan Farrow's father is, after a few years' speculation following Mia's statement that she'd never really split with Frank and always kept seeing each other.

Billboard reports that the latest statement in regards of who Ronan Farrow's father is came from the mouth of Nancy Sinatra, Jr. herself, as she appeared on "CBS Sunday Morning" and was invariably asked about what she knew about the situation - it's been widely known for years that Nancy and Mia are very close, and that the former considers the actress a "sister."

"Mia's son? Oh, nonsense," said Nancy. "I was kind of cranky at Mia for even saying 'possibly' because she knew better."

In a similar manner, Nancy's sister, Tina, recently told Showbiz411 that the "My Way" crooner couldn't have been Ronan Farrow's son since he'd had a vasectomy before the young journalist was conceived in 1987.