Image Credit: Getty Images Mary Cosby has been a headline-making figure both on and off The Real Housewives of Salt Lake City. Known for her role as a Pentecostal church leader and longtime Bravo personality, Mary's personal life has often drawn as much attention as her time on the show. In February 2026, she and her husband faced an unimaginable tragedy with the death of their only son, Robert Cosby Jr., at age 23. "Our beloved son Robert Jr. has been called home to the Lord," the family shared in a statement.