Transformed at the end of the 17th century by Jules Hardouin-Mansart and Robert de Cotte, the Palace of Tau still holds rooms that have retained their medieval aspect. This is the case with the Palatine Chapel (13th century) and the Tau Room, in which the coronation banquet was held. Decorating the walls are 15th century tapestries which tell the story of "Mighty King Clovis". The royal treasury's most remarkable objects are Charlemagne's talisman (9th century) and Saint Remi's chalice (12th century). The Sainte-Ampoule, or "holy flask", contains the holy oil with which new kings were anointed during the coronation ceremony. https://www.reims-tourism.com/palais-du-tau/reims/pcu0000000000855