Chartreuse (liqueur) was not a secret but well known. At the death of the pharmacist, his heirs returned the manuscript to the monks who had been back at the Monastery since 1816. In 1838, they developed Yellow Chartreuse, a sweeter version of the Green Chartreuse, 40% alcohol liqueur (80° proof). The monks were again expelled from the monastery following a French law in 1903, and their real property, including the distillery, was confiscated by the government. The monks took their secret recipe to their refuge in Tarragona, Catalonia, and began producing their liqueurs with the same label, but with an additional label
Chambord Liqueur the French Martini . The French Martini started the "cocktails as a Martini" craze. Since 2007, Chambord has earned silver and bronze medals from the San Francisco World Spirits Competition. Other spirit ratings organizations have rated Chambord relatively highly as well. Based on Chambord's reviews from various professional raters, Proof66 has categorized Chambord as a "First Tier" liqueur. Chambord Liqueur Chambord Liqueur () is a 16.5% abv raspberry liqueur modelled after a liqueur produced in the Loire Valley of France during the late 17th century. The Chambord product brand has been owned and produced by the Brown-Forman Corporation since 2006.