Francis J. Mugavero, 77, is dead; Was bishop of Brooklyn 22 years.

Presents an obituary of Bishop Francis J. Mugavero, who in his 22 years as the head of the Roman Catholic Diocese of Brooklyn combined staunch liberalism and a fierce loyalty to the Vatican. He died of a heart attack on July 12 while vacationingin East Hampton, L.I. He was 77 years old and had retired in 1990.