Washington (CNN) - Alexander Haig, the former military officer, secretary of state and adviser to presidents, died Saturday, a Johns Hopkins Medical Center spokesman said.
Haig, 85, was admitted to the Baltimore, Maryland, hospital on January 28, hospital spokesman Gary Stephenson said.
Haig was a top official in the administrations of three presidents - Richard Nixon, Gerald Ford, and Ronald Reagan.
He served as Nixon's deputy assistant for national security affairs beginning in 1970, then in January 1973 became vice chief of staff of the Army.