She is portrayed
as the daughter of Michael Corleone and Kay Adams and sister of Anthony Vito
Mary, although close to her father, is sheltered from the violent world of
the Corleone crime family. She falls in love with her cousin, Vincent 'Vinnie'
Mancini-Corleone, who is also Michael's hotheaded protegé and heir to the
business. Michael disapproves of the romance, believing her marriage to his
successor would put Mary in danger. After being appointed Godfather toward
the end of the film, Vincent ends the relationship to protect her. She is
killed anyway, however, by an assassin trying to kill Michael.
Michael is devastated by Mary's death, which happens as he is beginning to
finally put his life as Don Corleone behind him and rekindle his estranged
relationship with Adams. A broken man, he retires to Sicily, where he