Sidney Painter
Sidney Painter (September 23, 1902 – January 12, 1960) was an American medievalist and historian. He was a fellow of the Mediaeval Academy and professor of history and chairman of the department of history at Johns Hopkins University. Life and career 
Painter was born in New York City; after the Taft School he attended Yale University (AB 1925; PhD 1930). He was an influential member of American academia in the 1950s and served on many boards and committees. He was treasurer and secretary of the American Council of Learned Societies and was a member of the council of the Mediaeval Academy. He was made a fellow in 1953. That same year, he was elected to the American Philosophical Society. He was elected to the American Academy of Arts and Sciences in 1958. He wrote many influential books. His doctoral thesis was later published as "William Marshal: Knight-Errant, Baron, and Regent of England", and was supervised by Professor Sydney K. Mitchell at Yale University. He was an expert in medieval institutions but also believed in relating history from personal perspectives. He argued that the reign of King John cannot be understood without an intimate knowledge of the barons and their families and the division of family lands at the time. He died in Baltimore at the age of 57. Works
William Marshal: Knight-Errant, Baron, and Regent of England (1933)
The Scourge of the Clergy: Peter of Dreux, Duke of Brittany (1937)
Studies in the History of the English Feudal Barony (1943)
The Reign of King John (1949)
A History of the Middle Ages, 284–1500 (1953), re-published as Western Europe in the Middle Ages, 300–1475, co-authored by Brian Tierney (1983)
French Chivalry: Chivalric Ideas and Practices in Mediaeval France (1961)
Feudalism and Liberty: Articles and Addresses (1961)
Mediaeval Society
The Rise of the Feudal Monarchies

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Painer, Sidney
1960 deaths
20th-century American historians
20th-century American male writers
American medievalists
Fellows of the Medieval Academy of America
Johns Hopkins University faculty
Yale University alumni
American male non-fiction writers
Members of the American Philosophical Society