Gregory of Tours was the first to mention the name change: in the tenth book of his "History of the Franks" written shortly after 590 he said that Egidius, Bishop of Reims, accused of plotting against King Childebert II of Austrasia in favor of his uncle King Chilperic I of Neustria, was tried by a synod of Austrasian bishops in Metz in November 590, found guilty and removed from the priesthood, then taken ""ad Argentoratensem urbem, quam nunc Strateburgum vocant"" ("to the city of Argentoratum, which they now call "Strateburgus""), where he was exiled.