Decorative triangular finish, crowning the top of the portal or window arch, characteristic of gothic architecture. Made of stone or brick. Triangle area carved with a blind or openwork tracery or left smooth. The edges were decorated with ornate motifs in the shape of rolled leaf or crockets, topped with floweron or cross. For the first time the wimperg was used in the cathedral of Sainte-Chapelle in Paris in the first half of the 13th century.