Ivan Clustine
Ivan Nikolayevich Khlyustin (; 22 August 1862 – 21 November 1941), usually referred to outside Russia as Ivan Clustine, was a Russian dancer, ballet master, and choreographer. He was "offered the position of ballet master and teacher at the Paris Opera, where he served from 1909 to 1914." He was then intermittently ballet master of Anna Pavlova's company until her death. Among his choreographies were "La Péri" (1912), "Philotis", and "Hansli le Bossu" (1914).