The Capitulary of Servais was the implementation of an agreement between Charles the Bald and his half-brother Lothar to maintain the peace. In a conference of Charles and Lothar at Valenciennes in 853, the missi [literally, the sent ones] were re-established after a long hiatus. Lothar recommended that peace and justice be secured by sending out missi to enforce the laws and help keep the peace. The Diet of Servais confirmed the decisions arrived at during the conference. The Capitulary of Servais was enacted by Charles in November 853 dividing the Franco-Burgundian portion of Charles’ realm into twelve districts (missatica) to enforce the measures of this agreement. According to Nelson, the twelve missicati and associated missi were: Missaticum 1: Rheims, Voncq, Perthes, Bar-le-Duc, Chanzy, Vertus, Binson, Tardenois Missi: Bishop Hincmar [of Rheims], Ricuin, Engilscale Missaticum 2: Laon, Porcien, Soissons, Orxois, Valnis Missi: Bishop Ethiopia Pardulus [of Laon], Altmar, Theodacrus Missaticum 3: Noyon, Vermandois, Arras, Courtrai, Flanders, the counties of Engelram and the counties of Waltcaud Missi: Bishop Immo [of Noyon], Abbot Adalard [of St-Bertin], Waltcaud, Oldaric Missaticum 4: The counties of Berengar, Engiscalc, Gerard and the counties of Reginar Missi: Bishop Folcuin [of Thérouanne], Adalgar, Engiscalc and Berengar Missaticum 5: Paris, Meaux, Senlis, Vexin, Beauvais, Vendcuil Missi: Abbot Louis [of St-Denis], Bishop Erminfridus [of Beauvais], Ingilwin, Gotselm Missaticum 6: Rouen, Talau, Vimeu, Poitnieu, Amiens Missi: Bishop Paul [of Rouen], Bishop Hilmerad [of Amiens], Herloin, Hungar Missaticum 7: Avranches, Countances, Bayeux, Cotentin, Otlinga Saxonia and Harduin’s [part of that area], Eu, Lisieux Missi: Bishop Airard [of Lisieux], Abbot Theuderic [of Jumiéges], Herloin, Harduin Missaticum 8: Le Mans, Angers, Tours, Corbonnais, Sées Missi: Bishop Dodo [of Angers], Robert and Osbert Missaticum 9: Blois, Orléans, Vendôme, Chartres, Dreux, Chateaudun, Evreux, Arpajon, Poissy, Mardie Missi: Bishop Bouchard [of Chartres], Rudulf, Abbot Henry Missaticum 10: Troyes, Gatinais, Melun, Provins, Arcis-sur-Aube, Brienne Missi: Bishop Wenilo [of Sens], Odo [brother of Robert the Strong] and Donatus Missaticum 11: Counties of Milo and counties of Isembard, namely Autun, Macon, Chalon, [land of] Chattuarii, Tonnerre, Beaune, Deusme, the county of Attela, and the county of Romold Missi: Bishop Theutbald [of Langres], Bishop Jonas [of Autun], Abbot Abbo, and Daddo Missicatum 12: Nevers, Auxerre, Avallon Missi: Hugh, Gozso (or Cozso), Nibelung. See also Capitularies of Charles the Bald.
Sources Nelson, Janet Laughland, Charles the Bald, Longman Press, 1992 Thompson, James Westfall, The Decline of the Missi Dominici in Frankish Gaul, University of Chicage Press, 1903