Máedóc of Ferns, also known as Saint Aidan, was an influential Irish bishop who lived from approximately 550 to 627. Born in County Cavan, he studied at Clonard Abbey before traveling to Wales to become a disciple of Saint David. He eventually returned to Ireland, where he established a significant religious community in County Wexford. As the first Bishop of Ferns, he is credited with founding thirty churches and was recognized for his leadership among the bishops of Leinster.