Willie Robertson discusses his mom Kay Robertson's grief and declining health after Phil Robertson's death, noting both emotional and physical challenges

Five years before Phil Robertson died, an unexpected addition came into his life. In early 2020, the Duck Dynasty patriarch found out that he had an adult daughter named Phyllis, whom he fathered after an affair in the 1970s.

TV personality and hunter Phil Robertson, best known for his role on "Duck Dynasty," has died at the age of 79.