Alan Greenspan, who served as chair of the Federal Reserve from 1987 to 2006, has died.

He was 100.

NBC News journalist Andrea Mitchell and Greenspan’s wife, announced his Death Monday in a statement to NBC News.

Mitchell said Greenspan died from complications of Parkinson’s Disease

“He was a giant of a man who helped shape the U.S. economy for decades under presidents of both parties, but was always honest in acknowledging his mistakes,” Mitchell said in her statement.

“To me he was my husband, who shaped my life from our very first date in 1984. He had ‘irrational exuberance’ for baseball, the Washington Commanders, tennis, golf and music, especially jazz,” she continued. “He will be remembered for his brilliance and his kindness. Being his life partner was the joy of my life.”

Greenspan served as the 13th chair of the central bank under four president’s — Ronald Reagan, George H.W. Bush, Bill Clinton and George W. Bush.

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He is the second-longest tenured Fed chairman in American history; William McChesney Martin served the longest.

From 1991 to 2001, he presided over the second-longest economic expansion in American history, according to the National Bureau of Economic Research.

Greenspan was born on March 6, 1926, in the Washington Heights, New York City. He attended George Washington High School and studied clarinet at the Juilliard School for one year.

Greenspan received his bachelor’s and master’s degrees in economics from New York University (NYU) in 1948 and 1950, respectively.

In 1952, Greenspan married artist Joan Mitchell. The marriage was annulled less than a year later.

He he went on to date the late journalist Barbara Walters in the late 1970s, and started dating Mitchell in 1984.

The two married 13 years later in a ceremony presided over by the late Supreme Court Justice Ruth Bader Ginsburg.