This name is of Germanic and Old English (Anglo-Saxon) origin, composed of two elements: “*mahti- / maht” (might, power, ability) plus “*harduz / *hardu-” (hard, strong, brave, powerful one). In turn the name means “the one who is very powerful”. Bishop of Vermandois who removed the seat of the diocese to Noyon. St Medardus was born at Salency, Oise, in Picardy. His father, Nectaridus, was a noble of Frankish origin, while his mother Protagia was Gallo-Roman.