Is francine Sinatra frank Sinatra's granddaughter?

Answer 1

No, Sinatra has two grand-daughters by Nancy. Their sur-name however, was Lambert. Frank Sinatra Jr. has one son, named Michael.

Actually Frank Jr. does have more children, he just wasn't married to their mothers. Francine Sinatra Anderson is one of them. There are at least two others.

Answer 2

Frank Jr. does have a daughter, Heather Christina, born to him and long time love, Sharon, (Sherry),Anne Smith, on January 21, 1970 in Alexandria Hospital, Alexandria, VA. She was the first born grandchild of the Chairman of the board and now a dead ringer for Tina and her Dad. Her Mother, now Sharon Larson, after 43 years is probably ready to "open" up. But has kept this secret to protect her child at all costs. Unlike the "kiss and tells" that have used and abused FSJ for years....Sharon kept silent.