Giovanni di Tui was a Portuguese religious figure who lived during the 9th century. Originally from Porto, he sought a life of solitude and moved to the Tui region in Galicia to live as a hermit. After spending many years in prayer and isolation, he passed away in Tui. He is recognized as a saint within the Catholic tradition, though his veneration is primarily observed at a local level.
Life and death

Born in Porto, Giovanni felt a strong desire for eremitic life during his youth. He relocated to the Galician region of Tui to pursue this spiritual path. Following a long period of solitary prayer, he died in Tui, where he was buried in the Dominican Convent.
Veneration and tradition
The saint is commemorated on June 24. Historically, he was widely popular and believed to offer protection against fevers. Local tradition suggests that Queen Mafalda of Portugal placed his head in the Church of San Salvatore di Gandra, while another portion of his relics was moved to a chapel in Porto.
