Robert Kinloch Massie III (January 5, 1929 – December 2, 2019) was an American historian and biographer. His career focused on the history of the House of Romanov, Russia's imperial family from 1613 to 1917. He was born in Versailles, Kentucky. He won the 1981 Pulitzer Prize for Biography for "". From 1987 to 1991, Massie was President of the Authors Guild, and he served as an "ex officio" council member.