Michael Corinthos, III has been the center of numerous battles since he was born. His mother Carly lied about his paternity and claimed that his biological uncle Jason was his real father. Jason went along with the story, to prevent his brother AJ from learning the truth: that AJ, in fact, was Michael's father...

Father: Sonny Corinthos, Jr. (adoptive), AJ Quartermaine (biological; Deceased)
Mother: Carly Corinthos
Grandfathers: John Durant, Alan Quartermaine, Mike Corbin (adoptive)
Grandmothers: Adella Corinthos (adoptive grandmother, Deceased), Bobbie Spencer
Uncles: Ric Lansing (adoptive), Lucas Spencer (adoptive), Jason Morgan
Aunts: Courtney Matthews (adoptive; Deceased), Emily Quartermaine (adoptive), Dawn Winthrop (Deceased)
Siblings: Kristina Davis (half-sister), Morgan Stone Corinthos (half-brother)