Former Secretary of State Alexander Haig, a four-star general who served as a top adviser to three presidents, died Saturday of complications from an infection, his family said. He was 85. Haig's long and decorated military career launched the Washington career for which he is better known, including top posts in the Nixon, Ford and Reagan administrations. Haig died at Johns Hopkins Hospital in Baltimore, where he was surrounded by his family, according to two of his children, Alexander and Barbara. A hospital spokesman, Gary Stephenson, said Haig died at about 1:30 a.m. Haig is survived by his wife of 60 years, Patricia; his children Alexander, Brian and Barbara; eight grandchildren; and his brother, Francis R. Haig.