Tudno was a 7th-century Welsh religious leader and abbot. According to tradition, he was a son of King Seithenyn, whose kingdom was lost to the sea. To seek a religious life, he settled on the Great Orme peninsula, where he initially lived as a hermit in a coastal cave. He is recognized as the founder of the original parish church in the area, which eventually led to the establishment of the town of Llandudno, a name derived from his own.
Life and work

After leaving his family's lost kingdom, Tudno established himself on the limestone outcrop of the Great Orme. He lived in a cave called Ogof Llech, utilizing a nearby spring for water. From this secluded location, he built a church to spread Christian teachings. While the original 6th-century structure is gone, it was succeeded by a 12th-century building that maintains a continuous history of worship on the same site.
Veneration and legacy

He is the patron saint of Llandudno and is commemorated annually on 5 June. The church dedicated to him remains an active place of worship. Historically, the local community celebrated his patronal festival, and the Great Orme Tramway once even provided special cars to transport mourners to the churchyard. One tramcar, numbered 4, is named in his honor.
