Dewi Sant is the Welsh name for Saint David, the patron saint of Wales. He is celebrated for his contributions to Christianity in the region during the 6th century. His feast day is observed on March 1st, a day marked by various celebrations and parades throughout Wales. Dewi Sant is often depicted with a dove, symbolizing peace and purity. He founded a monastic community at Glyn Rhosyn, now known as Glastonbury, and is credited with performing miracles, including healing the sick. His legacy continues to influence Welsh culture and identity today.