Saint Gemolus was a martyr whose life is documented in medieval manuscripts, including a 13th-century Milanese codex and a later transcription of an ancient passio. Around the year 1000, he was traveling through the Marchirolo Valley near Arcisate with a group of pilgrims, including his uncle, a bishop. After being robbed by bandits, Gemolus and his companion Imerio pursued the thieves. When the criminals refused to return the stolen goods, Gemolus accepted death for his faith. He was subsequently decapitated by the bandit leader known as the Red.
Life and death


Following his decapitation, tradition claims Gemolus miraculously gathered his own head before reaching his uncle on a nearby hill to die. His uncle buried him there, eventually leading to the construction of a small church. His companion Imerio also died from wounds sustained during the confrontation with the bandits.
Veneration

The saint's memory inspired the establishment of a Benedictine monastery in Ganna, which held significant spiritual influence in the Varese province. Devotees traditionally visited the spring where he died to collect red porphyry stones, believed to be drops of his blood. Pilgrims also sought the saint's waters to encourage rainfall for their crops.
Legacy

The relics of the martyr are kept at the Abbey of San Gemolo, where they were authenticated by a commission in 1941. His story has also influenced modern culture, serving as the inspiration for the song "Gira la testa" by singer-songwriter Angelo Branduardi.
