The Kennedy family is one of the most famous families in the world,but their history has been plagued by tragedies commonly know as The Kennedy Curse.The Kennedy family is one of the most famous families in the world,but their history has been plagued by tragedies commonly know as The Kennedy Curse.The Kennedy family is one of the most famous families in the world,but their history has been plagued by tragedies commonly know as The Kennedy Curse.