Frank Cicero, Jr. (born 1935, Chicago, Illinois) is an American trial and appellate lawyer and published historian. In his five-decade career as a litigator and partner at the international law firm Kirkland &amp; Ellis, he has handled major U.S. civil and criminal trials and highly publicized international proceedings, such as those arising out of the Amoco "Cadiz" and Exxon "Valdez" oil spills. His legal work has been recognized by the Chambers &amp; Partners and "The Best Lawyers In America" lawyer-rating directories, "The" "New York Times" and "Chicago Tribune", and several books. In 1969–70, he served as a delegate to the Sixth Illinois Constitutional Convention, which drafted the state's most recent constitution. Cicero has written two history books, "Relative Strangers: Italian Protestants in the Catholic World" (2011) and "Creating the Land of Lincoln: The History and Constitutions of Illinois 1778-1870" (2018). The latter work won the Illinois State Historical Society's Russell P. Strange Book of the Year Award in 2019, in recognition of its contribution to the study of Illinois history.