Search in County Wexford. My family research has led me to County Wexford for the name Madog/Maddox. I have found substantial Irish connections to the name Maddox. There appeared a Saint Maedoc who developed a parish in Ferns, County Wexford in the sixth century. One of the first Irish Bishops was Mael Madoc. There is a Maddockstown, Kilkenny, Ireland and a River Mattock in County Louth. I am looking for help from anyone who can provide me links to the Madoc surname and it's Celtic roots. Thank you.