A folding chair in Egypt, and later Greek and Etruscan (Italian western ancient) folding chair, folding chair became Roman prototype in the Roman Republic, sellacurulis chair became popular in the civilian court. From Rome's "sellacurulis" to a member of a chair, "sellaplicatilis", and then to the Carlovingian "faldistorium", we can find a shape change. The chair legs crossed on both sides of the chair turn to the front of the chair. This is to emphasize the cross "X" structure, showing the symbol of power. The best example is the seat of the theFranconians king Dagobert I. Before the Renaissance, there was a typology of folding chairs. The sixteenth Century sediadellaforbice chair (scissors chair) inherited the features of faldistorium. But the two major differences: the 'chairofpetrarca' and 'the' sediaatenaglia inherited the 'Savonarola' and 'the' dantesca, and their chair legs crossed back to both sides of the chair. In Baroque, chairs that contained cross legged chairs could not be folded, especially during the sixteen period from Louis Xiv to Louis, and the X'structure had an exclusive symbol. Napoleon's battlefield seat "fauteuil" came from the etymology of ancient French "faldestoel", and the root came from Latin "faldistorium""