Louis was a keen player of "jeu de paume", or real tennis, and became notable as the first person to construct indoor tennis courts in the modern style. Louis was unhappy with playing tennis out of doors and accordingly had indoor, enclosed courts made in Paris "around the end of the 13th century". In due course this design spread across royal palaces all over Europe. In June 1316 at Vincennes, following a particularly exhausting game, Louis drank a large quantity of cooled wine and subsequently died of either pneumonia or pleurisy, although there were also suspicions of poisoning. Because of the contemporary accounts of his death, Louis is history's first tennis player known by name. He and his second wife Clementia are interred in Saint Denis Basilica.