BALTIMORE — John Mackey, the rugged Hall of Fame tight end and union president who later fought for stronger health benefits of retired players and struggled with dementia, has died. He was 69.

Mackey’s wife notified the team about her husband’s death, Baltimore Ravens spokesman Chad Steele said today. No official cause was given.

Mackey played for the Baltimore Colts from 1963-71, and helped the team beat the Dallas Cowboys in the 1971 Super Bowl.

He also played for the San Diego Chargers in 1972, and finished his 10-year career with 331 catches for 5,236 yards and 38 touchdowns.

Mackey’s efforts after his playing days were just as important as his performance on the field. An NFL labor agreement ratified in 2006 includes the “88 Plan,” named for Mackey’s number, 88. It provides up to $88,000 a year for nursing care or day care for ex-players with dementia or Alzheimer’s disease, or $50,000 for home care.

After he retired, Mackey joined Mike Ditka as the first tight ends selected to the Pro Football Hall of Fame.

The John Mackey Award was established to honor the nation’s top college football tight end, and Syracuse retired his number in 2007.