Bonmont Abbey

Bonmont Abbey is a former Cistercian monastery located in Chéserex, in the canton of Vaud, Switzerland. It is recognized as a Swiss heritage site of national significance.

History and Significance

The foundation of Bonmont Abbey is placed between 1110 and 1120, with its first mention in 1123. Established in the context of the 11th-century Benedictine reform, its foundation was likely supported by Savoyard abbeys. By 1131, the monastery had officially joined the Cistercian Order, a fact confirmed by a deed of gift from local lords. The construction of the abbey church began in 1131 and continued until the close of the 12th century. This period saw the church built in a transitional style, incorporating both Romanesque and Gothic architectural elements, reflecting an initial adherence to simple, sober design.

However, the abbey's adherence to strict monastic rules was soon superseded by accumulating wealth. Numerous donations from local nobility expanded its possessions, creating strong ties between the monks and the ruling class. By the 13th century, under the protection of the House of Savoy, Bonmont Abbey had become one of the most prosperous monasteries in the Lake Geneva region. This newfound wealth led to significant alterations in architectural and decorative practices, with the church interior being adorned with vibrant colors and paintings, deviating from the austere Cistercian tradition. A notable structural change occurred in 1488 with the addition of a massive tower over the transept, replacing a modest roof turret.

The abbey's trajectory shifted dramatically with the conquest of Vaud by Bern and the advent of the Reformation in 1536. Bonmont Abbey was secularized, and its monastic buildings were largely converted for agricultural purposes or demolished. The abbey church, however, was adapted for practical uses such as a wine warehouse, granary, cheese factory, and bakery, with a small chapel remaining operational. This repurposing ultimately saved the structure from demolition. The interior of the church underwent a complete remodeling in 1761. Following the Vaud Revolution in 1798, the abbey buildings became state property before passing into private ownership in 1802. The church itself was significantly altered again in 1820 with the addition of new entrances and a residence. Recognizing its historical importance, the church was declared a National Monument in 1942 and was extensively restored by the Canton of Vaud between 1982 and 1995.