Richarius was a 7th-century Frankish monk and priest who lived in the region of Ponthieu. Originally a pagan, he converted to Christianity after providing hospitality to two Welsh missionaries. Following his conversion, he led an ascetic life, practiced rigorous fasting, and traveled to England to preach and heal the sick. He is primarily remembered for establishing two monasteries, including the one at Centule, which eventually became the site of the town now known as Saint-Riquier.
Life and work


After his conversion, Richarius served as a priest and founded the monastery of Centule, which followed the Rule of Saint Columbanus. He was known for his directness when advising King Dagobert I, leading the monarch to support his religious community. He used donations to assist the poor, lepers, and prisoners. Later, he lived as a hermit in the forest of Crécy, where he founded a second monastery before his death in 645.
Veneration and legacy


He is honored as a saint in both Catholic and Eastern Orthodox traditions. His remains were moved several times, including to Montreuil and St-Omer, before being returned to Saint-Riquier. The yellow rocket flower is traditionally associated with him. His feast day is observed on April 26, while October 9 marks the translation of his relics.
