In the statement released by the family, the cause of Kitty Dukakis' death was revealed to be dementia. She is survived by her three children, her husband, Michael Dukakis, and seven grandchildren.

Kitty was an activist and the wife of former Massachusetts governor Michael Dukakis. The couple was married for over 61 years until Katharine’s passing. Michael is also Olympia Dukakis's first cousin.