Jean de Louvres (Johannem(-s) de Luperiis)
Jean de Louvres (or de Louvries, or Loubières) was a French architect of the fifteenth century. He was the main architect of the Palace of the Pope in Avignon (1334-52).
("Die xxxa aprilis facto computo cum Johanne de Castellione habitatore Avinionis de cannando iim cxxx cannis vii palmis parietum et edificiorum factorum per magistrum Johannem de Luperiis in palatio Avinionis ad relationem domini Raymundi Guitbaudi et Rostagni Berqui ad hoc deputatorum per cameram repertum est sibi deberi xii flor. videlicet solvi medietatem per cameram et aliam per dictum magistrum Johannem et solvi pro parte debita per cameram vi flor.") from the Vatican Archives