Question: On what date are the celebrations of the commemoration which is organized by the Compagnie de 1602 usually held?
Sentence (from "L'Escalade"): L'Escalade, or Fête de l'Escalade (from escalade, the act of scaling defensive walls), is an annual festival held in December in Geneva, Switzerland, celebrating the defeat of the surprise attack by troops sent by Charles Emmanuel I, Duke of Savoy during the night of 11–12 December 1602.
Relevant evidence: No