Rose Elizabeth Fitzgerald Kennedy was an American philanthropist, socialite, and matriarch of the Kennedy family. She was deeply embedded in the "lace curtain" Irish-American community in Boston. Her father, John F. Fitzgerald, served in the Massachusetts State Senate (1892–1894), in the U.S. House of Representatives, and as Mayor of Boston. Her husband, Joseph P. Kennedy Sr., chaired the U.S. Securities and Exchange Commission (1934–1935) and the U.S. Maritime Commission (1937–1938), and served as United States Ambassador to the United Kingdom (1938–1940). Their nine children included United States President John F. Kennedy, U.S. Senator Robert F. Kennedy of New York, U.S. Senator Ted Kennedy of Massachusetts, Special Olympics founder Eunice Kennedy Shriver, and U.S. Ambassador to Ireland Jean Kennedy Smith. In 1951, Rose Kennedy was ennobled by Pope Pius XII, becoming the sixth American woman to be granted the rank of Papal countess.

The Kennedy family is an American political family that has long been prominent in American politics, public service, entertainment, and business. In 1884, 35 years after the family's arrival from County Wexford, Ireland, Patrick Joseph "P. J." Kennedy became the first Kennedy elected to public office, serving in the Massachusetts state legislature until 1895. At least one Kennedy family member served in federal elective office from 1947, when P. J. Kennedy's grandson John F. Kennedy became a member of Congress from Massachusetts, until 2011, when Patrick J. Kennedy II retired as a member of the U.S. House of Representatives from Rhode Island.