He was 96.
Scranton died Sunday in Montecito, Calif., of a brain hemorrhage, a family spokesman said.
A descendant of Mayflower colonists and heir to a railroad and utilities fortune, Scranton was regarded as a "Kennedy Republican" in the 1960s, with fiscally conservative views but support of civil rights and other liberal programs. After election to Congress in 1960 and to the Pennsylvania governor's mansion in 1962, he was unable to take the 1964 Republican presidential nomination from conservative Barry Goldwater, The New York Times noted.
After deciding he would not run "ever again for any public office under any circumstances," Scranton served on government commissions, advised the White House on arms control policy and undertook missions for President Nixon on the Middle East, for President Ford as United Nations representative, for President Carter on urban policy and intelligence oversight and for President Reagan on Soviet-American relations.