Marron glacé of 'glazing'), may have been created only in the 16th century. Lyon and Cuneo dispute the title for the addition of the glazing, or icing, that makes the real "marron glacé". The earliest known records of a recipe for marron glacés were written during the XVI century by an Italian cook that worked for Charles Emmanuel I, Duke of Savoy [1580], and by the French at the end of 17th century in Louis XIV's Versailles court. In 1667, François Pierre La Varenne, ten years' chef de cuisine to Nicolas Chalon du Blé, Marquis of Uxelles (near Lyon and a chestnut-producing
Joseph Marron Iancu, and Raytheon CEO Thomas Kennedy. The patent has been assigned to Raytheon. Joseph Marron Joseph Charles Marron (born 1959) is an American optical engineer and a principal engineering fellow at Raytheon. He is known for his work in developing advanced laser radar and the invention of holographic laser radar. He is a fellow of the Optical Society of America and in June 2018 was awarded the 10 millionth U.S. patent. Marron was educated at University of Rochester's Institute of Optics. He received his undergraduate degree in 1981 and his PhD in 1986. While working at the Environmental Research Institute