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Wiki information Cosmat:
Cosmatesque, or Cosmati, is a style of geometric decorative inlay stonework typical of τhe architecture of Medieval Italy, and especially of Rome and its surroundings, and derived from that of the Byzantine Empire. It was used most extensively for...
Jean Marcel Cosmat was a French rower who competed in the 1936 Summer Olympics. In 1936 he won the bronze medal as crew member of the French boat in the coxed fours competition.