Abstract
An exceptional manuscript relating to the crusade period can be viewed at the Archives Départementales de Saône-et Loire in Mâcon. The manuscript in question, a vidimus, contains a copy of the titles of a Cistercian abbey established on the western slopes of Mount Lebanon in the 13th century: Saint-Serge de Gibelet. This document, published only once in Latin and never translated until now, has attracted little attention from specialists. The monastery, founded in the Lebanese mountains in the 13th century, stands out as one of the few documented attempts at a permanent Latin settlement in Mount Lebanon.