After antiquity, the region was inhabited by the Germanic Alamanni. The Synod of Thionville was held from February 2, 835. It reinstated Emperor Louis the Pious and reversed his former conviction of crimes — none of which he actually committed — and deposed the Archbishop of Rheims, Ebbo. The Synod was composed of 43 bishops. On February 28 835 in Mainz, Ebbo admitted that Louis had not committed the crimes of which he had been indicted and for which he had been deposed as Holy Roman Emperor.
Eskil, Archbishop of Lund, was imprisoned at Thionville (at the instigation of the Archbishop of Bremen?) on his return from his 1153 pilgrimage to Rome. The Siege of Thionville in June 1639 occurred as part of the Thirty Years' War.
From 1870-1918, Thionville was part of the German Empire under its German name Diedenhofen.
Thionville is divided into two cantons (districts). It belongs to Thionville Est (East), while the seat of the district of Thionville Ouest (West) which it does not form a part of Thionville:
WIPO ASSIGNS PATENT TO CENTRE HOSPITALIER REGIONAL METZ THIONVILLE FOR "ORAL ACCESSIBILITY DEVICE" (FRENCH INVENTOR)
Oct 10, 2011; GENEVA, Oct. 10 -- Publication No. WO/2011/121513 was published on Oct. 6. Title of the invention: "ORAL ACCESSIBILITY DEVICE."...