Angier Biddle Duke

His paternal grandfather was Benjamin Newton Duke (1855–1929), a major benefactor of Duke University and brother of James Buchanan Duke, himself the father of Doris Duke, Angier's cousin.

His maternal grandfather was Anthony Joseph Drexel Biddle, Sr. Through his mother, he was a great-great-grandson of banker Anthony Joseph Drexel.

Duke attended St. Paul's School in Concord, New Hampshire.

His father was Angier Buchanan Duke (1884–1923) and his mother was Cordelia Drexel Biddle, later Cordelia Biddle Robertson.

Angier Buchanan Duke was an heir to the American Tobacco Company fortune while Cordelia Drexel Biddle was a member of the Biddle family who were prominent in business, political and cultural affairs in Philadelphia.

Angier Biddle Duke (November 30, 1915 – April 29, 1995) was an American diplomat who served as Chief of Protocol of the United States in the 1960s.

Prior to that, at the age of 36, he became the youngest American ambassador in history when he was appointed to be the U.S. Ambassador to El Salvador.

Duke was born in New York City.

Angier Biddle Duke's only sibling was Anthony Drexel Duke (1918–2014).

After separating in 1918, Duke's parents divorced in 1921.

In the late 1930s, Duke became skiing editor for a sports magazine and, by 1940, he enlisted as a private in the United States Army Air Forces.

He dropped out of Yale University in 1936.

In 1937, he married Priscilla Avenal St. George (1919–1995) at St. Mary's-in-Tuxedo Episcopal Church.

She was the daughter of George Baker Bligh St. George and Katharine St. George, a member of the U.S. House of Representatives from New York.

Her maternal grandmother, Catherine Delano Collier, was the younger sister of Sara Delano Roosevelt, the mother of President Franklin Delano Roosevelt and her great-grandfather was George Fisher Baker, the financier and philanthropist.

Her father was the grandson of Robert St George, himself the son of Sir Richard Bligh St George, 2nd Baronet.

Upon his discharge in 1945, Duke was a major serving in North Africa and Europe.

His uncle, Anthony Joseph Drexel Biddle, Jr., was serving as ambassador to most of the governments-in-exile that were occupied by Germany during World War II.

In 1949, Duke joined the United States Foreign Service as an assistant in Buenos Aires and subsequently Madrid.

From 1952 to 1953, he served as the U.S. Ambassador to El Salvador during the Truman administration and was, aged 36, the youngest ever U.S. Ambassador up to that time.

"People thought Angie was just a rich playboy when President Truman appointed him Ambassador to El Salvador. He was 32 or 33 years old, the youngest ambassador in United States history, and the Duke name represented entrenched, giant capitalists."

With the Democratic Party out of power in 1953, he left the foreign service and returned to private life.

During much of this time he served as President of the International Rescue Commission.

Originally a Republican, he later became a Democrat.

In 1960, Duke, a personal friend of Kennedy, was asked to serve as chief of protocol for the U.S. State Department with the rank of ambassador.

As a vocal supporter of equal rights, "he resigned from the Metropolitan Club of Washington after it refused to admit black diplomats" in 1961.

His most visible task during his term as chief was to supervise the protocol for world leaders who attended the funeral of John F. Kennedy on November 25, 1963.

He held this position until 1965.

At the end of his term as chief of protocol, the Johnson administration asked him to serve as U.S. Ambassador to Spain, which he did from 1965 to 1968.

He then served as Chief of Protocol a second time, for less than six months, until he was appointed to become the U.S. Ambassador to Denmark.

He served in that position for seven months.

In 1969, he was awarded an honorary LL.D. degree from Duke University.

Following Vice President Hubert Humphrey's defeat by Richard Nixon, and with the Democratic Party again out of power, he was again out of the U.S. Foreign Service.

In the early 1970s, he was appointed by Mayor Abraham Beame to serve as Commissioner of the New York City Department of Civic Affairs and Public Events with a staff of 17 until he resigned in 1976 to work for Jimmy Carter's campaign for the presidency.

When Carter defeated Gerald Ford in the 1976 presidential election, the Democrats were again in power, and in 1979 the administration brought him back again to serve as the U.S. Ambassador to Morocco, a position he held until 1981, when he was succeeded by Joseph Verner Reed, Jr. following Ronald Reagan's election to president.

Upon his return to the United States, the National Committee on American Foreign Policy awarded him with the inaugural Hans J. Morgenthau Memorial Award "in recognition of his exemplary foreign policy contributions to the United States".

From 1992 to 1995, Duke served as the elected president of the Council of American Ambassadors.

He was a member of the Sons of the American Revolution.

He also served as the chancellor of the Long Island University, Southampton Campus.

After his death, his papers were archived by Duke University in North Carolina.