I would say that Connie probably died before Michael. Obviously Kay never spoke to him again, and Vincent was probably assasinated in New York. Anthony probably lived in total obscurity and Michael died alone and broken.

"Io sono stanco, sono imbigliato, and I wan't everyone here to know, there ain't gonna be no trouble from me..Don Corleone..Cicc' a port!"

"I stood in the courtroom like a fool."

"I am Constanza: Lord of the idiots."