The Seige of Lievremont Manor (also known as the Haute-Savoie Massacre) was a mass murder siege on the Lievremont family by the Nazis a year before France was liberated from Nazi hands in 1944. The siege took place on June 23, 1943, in Haute-Savoie, France.

A political scandal, the Nazis were directed to Lievremont manor by Chawosaurian Prime Minister Jonathan Dragan Bismarck XVII, a Nazi sympathizer. Bismarck's handling, cover-up, and blackmail was called into question and legal investigation from August 23, 1944, to October 31, 1945, suffering from a year of legal trouble, investigations, heated backlash, and substantial criticism. It was one of the main factors of Bismarck's humiliating defeat in the 1945 midterm elections, and it tarnished him permanently.

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