Church of San Guglielmo in Val San Giacomo: Sanctuary on the Via Spluga

The church is dedicated to Saint Guglielmo de Orenga, a hermit who lived in the 13th century and chose this secluded place to lead a life of prayer and poverty, living on what nature provided and on alms from travellers. For many years, the saint was mistakenly associated with the French House of Orange, but historical research later traced his origins to the de Orenga family from Menaggio, on Lake Como.

The sanctuary stands on the very site where the saint spent the final years of his life. A first chapel was consecrated in 1327, while the present church was built during the second decade of the 17th century and consecrated in 1637. Originally, the church was connected by a bridge over the Liro stream, which was destroyed by a flood in 1860; today, access is provided by a footbridge located a little further downstream. On the left side of the building stands the bell tower, built in 1737 at the foot of the Lepontine Alps.

The church interior consists of a single spacious nave and preserves numerous artworks dedicated to the devotion of Saint Guglielmo. One of its most significant features is the large wrought-iron gate dating back to 1642, which separates the nave from the presbytery and protects the saint’s relics beneath the main altar. The structure was crafted by the Casanova family of Chiavenna, an important local dynasty of ironworkers.

The sanctuary walls also preserve 17th-century frescoes and paintings depicting the life of Saint Guglielmo. Among them are works by Giovan Battista Macolino, a painter from the valley, who created the frescoes on the counter-façade and several scenes portraying episodes from the saint’s life and the popular devotion of Val San Giacomo.

Particularly striking is the side chapel, which houses a painting depicting Saint Guglielmo and Saint Charles Borromeo kneeling among plague victims while imploring the Virgin Mary. The artwork recalls the plague of 1629–1630, which also affected Valchiavenna and Valle Spluga, making it both a historical and religious testimony.

Next to the church is the cave where, according to tradition, the saint lived as a hermit and where his body remained until the 14th century. Today, this small rock-hewn space retains an especially peaceful and spiritual atmosphere, enriched by a soapstone statue of Saint Guglielmo created in 1784.

Today, the Church of San Guglielmo is one of the most important cultural and religious stops along the Via Spluga and throughout the Valle Spluga area. A place where history, sacred art and the alpine landscape continue to tell the story of the deep bond between spirituality and the mountains, surrounded by the silence and nature of Valchiavenna.