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Books about Champsavin:
La famille Le Beschu de Champsavin (French Edition) by Jean-Louis Michon (1990)
Wiki information Champsavin:
Louis Marie Joseph Le Beschu de Champsavin was a French horse rider who competed in the 1900 Olympic Games. He was born in Assérac and died in Nantes. In Paris he won the bronze medal in the jumping event.