régence style, transitional style in architecture and decoration originated in France during the regency (1715-23) of Philippe, duc d'Orléans. The most important practitioners of the régence were Gilles Marie Oppenord and Robert de Cotte. In this period, curved lines and many motifs such as shells, masques, and sinuous foliated scrolls were introduced. These innovations were subsequently developed in rococo design. The legs of furniture took bulging outlines and the corners of panels were curved. The use of gilt bronze was extended, and walnut, rosewood, and other woods largely replaced ebony in veneers.