Saint Judicael was a 7th-century monarch of Domnonée, a kingdom located in part of modern-day Brittany. Born around 590 to the king of Domnonée, he initially chose a monastic life at St John's Abbey in Gaël rather than claiming his father's throne. After his brother Haeloc's reign ended, Judicael assumed leadership of the kingdom, ruling for approximately twenty years. He eventually returned to the monastery, where he died in either 647 or 652. He is remembered both as a wise ruler and a devout monk.