Louis IX build the Sainte-Chapelle or "Holy Chapel", as a part of the royal palace on the Île de la Cité (now part of older administrative complex and court) to house collection of relics of Christ which Louis purchased from Baldwin II, the Latin emperor at Constantinople. The relics arrived in Paris from Venice. The relics were stored in a silver chest, named Grand-Chasse. Thay says that Louis spent 100,000 livres for this chest. Some ones say this was the French monarchy and state rising. At the time of French Revolution the relics dispersed and various reliquaries, including the grande châsse, were melted down. Some ones say this was the French democracy and republic rising.
The route begins not far from the famous opera house, runs along Richelieu Street, the garden of the royal palace, the secret square of Valois, the new bridge, the statue of Henry the fourth, the st. Shapel, the Citte, the Notre Dame de Paris, St. Louis island, the embankments and bridges and ends in Latin quarter