Oliver L. North, a decorated former Marine and onetime national security aide in the Reagan administration, and Fawn Hall, his former secretary, were married in Virginia last month, four decades after they became central figures in the arms-for-cash scandal known as the Iran-Contra affair.

Mr. North, 81, and Ms. Hall, 65, were married on Aug. 27 in a civil ceremony in Arlington County that was officiated by Dean S. Worcester, a retired Virginia district court judge, according to a copy of their marriage certificate. Mr. North and Ms. Hall did not immediately respond on Tuesday to messages left at numbers listed under their names. The wedding was reported on Substack by the journalist Michael Isikoff.

The marriage was a remarkable new chapter in the relationship between Mr. North and Ms. Hall, who emerged as two of the most prominent figures in the Iran-Contra scandal of the 1980s.

At the time, he was a lieutant colonel in the Marines and a National Security Council aide who riveted Americans with his defiant testimony about the sale of American arms to Iran.

The operation was intended to help secure the release of American hostages being held in Lebanon by Hezbollah, the Iranian-backed militia. The profits were secretly diverted to right-wing Nicaraguan rebels known as the contras, who were fighting the country’s leftist government. Congress had cut off military aid to the contras in 1984.

A veteran of the Vietnam War, Mr. North testified before the congressional committees investigating the matter while wearing a uniform pinned with ribbons. He became a hero to many on the right who saw him as standing up to a hostile panel of Washington insiders. Critics accused him of misleading Congress.