The Tennis Court Oath (David) to take the oath, Martin-Dauch, is shown in the lower right hand corner and provides a counterpoint to the general enthusiasm. David also drew all the faces in detail so that every figure was recognisable. Above are large windows with smiling figures of the public. In the 18th century, an oath had a sacred value and guaranteed a person would be faithful to their word, as in David's own "The Oath of the Horatii". During the French Revolution, collective oaths like the tennis court oath were considered as a factor in national unity and national unanimity. The tennis court oath
Royal Tennis Court, Hampton Court of a new tile floor, the remodelling of the galleries and repairs to the roof. At the same time, new nets, curtains and velvet cushions for the spectators' seats were provided. The interlaced initials above the net on the wall opposite the corridors are, however, not those of Charles but of William III and Mary II (1689–1702). Since the end of the 17th century the court has undergone little alteration. However, progress is not incompatible with history: in 1975 sodium halide lighting was installed. The Real Tennis World Championship has been played at the Royal Tennis Court on five occasions: