sentences:  Ecgberht of Ripon, who organized the first missionary efforts, studied at Rath Melsigi in County Carlow; as did Wihtberht.Willibrord, and Swithbert, Adalbert of Egmond, and Chad of Mercia.Ecgbert of York founded a school, among whose students were the scholar Alcuin, and the Frisian Ludger, who founded in 799.Werden Abbey on the Ruhr.