They have 8 children, Frankie Jr, Dina, Laura, Joseph, Nicolas, Kathryn, Tony and Carla.
Frankie Avalon married Kathryn Diebel on January 19, 1963. She was a former beauty pageant winner, and Avalon met her while playing cards at a friend`s house. He told his friend that Kay was the girl he was going to marry. His agent warned Avalon not to marry, as it would spoil his teen idol mystique, but Avalon ignored his advice. Still together, the couple has eight children--in order of age, they are Frankie Jr., Tony, Dina, Laura, Joseph, Nicolas, Kathryn and Carla. They also have 10 grandchildren.