Treaty of Ribemont

, Participants =

Louis the Younger Louis the Younger (830/835 – 20 January 882), sometimes Louis the Saxon or Louis III, was the second eldest of the three sons of Louis the German and Emma. He succeeded his father as the King of Saxony on 28 August 876 and his elder brother C ...

, Louis III of France,

Carloman II Carloman II ( 866 – 6 December 884) was the King of West Francia from 879 until his death. A member of the Carolingian dynasty, he and his elder brother, Louis III, divided the kingdom between themselves and ruled jointly until the latter's d ...

, Location = Ribemont , Date = 880 , Result = All of Lotharingia given to East Francia The Treaty of Ribemont in 880 was the last treaty on the partitions of the Frankish Empire. It was signed by the German king

and the kings of

Western Francia In medieval history, West Francia ( Medieval Latin: ) or the Kingdom of the West Franks () refers to the western part of the Frankish Empire established by Charlemagne. It represents the earliest stage of the Kingdom of France, lasting from ab ...

Louis III Louis III may refer to: * Louis the Younger, sometimes III of Germany (835–882) * Louis III of France (865–882) * Louis the Blind, Louis III, Holy Roman Emperor, (c. 880–928) * Louis the Child, sometimes III of Germany (893–911) * Louis II ...

and Carloman. After the death of

Charles the Bald Charles the Bald (french: Charles le Chauve; 13 June 823 – 6 October 877), also known as Charles II, was a 9th-century king of West Francia (843–877), king of Italy (875–877) and emperor of the Carolingian Empire (875–877). After a se ...

, Louis the Younger secured the friendship of Charles' successor

Louis the Stammerer Louis II, known as Louis the Stammerer (french: Louis le Bègue; 1 November 846 – 10 April 879), was the king of Aquitaine and later the king of West Francia. He was the eldest son of Emperor Charles the Bald and Ermentrude of Orléans. Louis ...

with the Treaty of Fourons in November 878. The two nephews promised to accept the successions of their respective sons. The treaty was put to the test when Louis the Stammerer died in April 879. A western delegation led by Gauzlin, bishop of Paris and later protector of the city during the

Viking Vikings ; non, víkingr is the modern name given to seafaring people originally from Scandinavia (present-day Denmark, Norway and Sweden), who from the late 8th to the late 11th centuries raided, pirated, traded and se ...

raids, invited Louis the Younger to take control of

West Francia In medieval history, West Francia (Medieval Latin: ) or the Kingdom of the West Franks () refers to the western part of the Frankish Empire established by Charlemagne. It represents the earliest stage of the Kingdom of France, lasting from ab ...

. Because his wife Luitgard also supported this idea, Louis the Younger invaded West Francia. He reached as far as

Verdun Verdun (, , , ; official name before 1970 ''Verdun-sur-Meuse'') is a large city in the Meuse department in Grand Est, northeastern France. It is an arrondissement of the department. Verdun is the biggest city in Meuse, although the capital ...

, but he retreated after his nephews, the kings Louis III of France and

Carloman of France Carloman II ( 866 – 6 December 884) was the King of West Francia from 879 until his death. A member of the Carolingian dynasty, he and his elder brother, Louis III, divided the kingdom between themselves and ruled jointly until the latter's ...

, gave up their share of

Lotharingia Lotharingia ( la, regnum Lotharii regnum Lothariense Lotharingia; french: Lotharingie; german: Reich des Lothar Lotharingien Mittelreich; nl, Lotharingen) was a short-lived medieval successor kingdom of the Carolingian Empire. As a more durable ...

to him. Meanwhile,

Boso of Provence Boso (french: Boson; c. 841 – 11 January 887) was a Frankish nobleman of the Bosonid family who was related to the Carolingian dynasty and who rose to become King of Lower Burgundy and Provence. Origin Boso was the son of Bivin of Gorze, ...

, a noble of Carolingian descent, proclaimed himself king of

Provence Provence (, , , , ; oc, Provença or ''Prouvènço'' , ) is a geographical region and historical province of southeastern France, which extends from the left bank of the lower Rhône to the west to the Italian border to the east; it is bo ...

(see:

Lower Burgundy The Kingdom of Lower Burgundy, or Cisjurane Burgundy, was a historical kingdom in what is now southeastern France, so-called because it was lower down the Rhône Valley than Upper Burgundy. It included some of the territory of the Kingdom of ...

). Moreover, the Vikings resumed their attacks. To deal with these threats, the Carolingian kings decided to put aside their differences so as to deal with the threats together. They met at Ribemont, in present-day

Aisne Aisne ( , ; ; pcd, Ainne) is a French department in the Hauts-de-France region of northern France. It is named after the river Aisne. In 2019, it had a population of 531,345.Lotharingia Lotharingia ( la, regnum Lotharii regnum Lothariense Lotharingia; french: Lotharingie; german: Reich des Lothar Lotharingien Mittelreich; nl, Lotharingen) was a short-lived medieval successor kingdom of the Carolingian Empire. As a more durable ...

. This included the western part of it, which West Francia had previously acquired in the

Treaty of Meerssen The Treaty of Mersen or Meerssen, concluded on 8 August 870, was a treaty to partition the realm of Lothair II, known as Lotharingia, by his uncles Louis the German of East Francia and Charles the Bald of West Francia, the two surviving sons of ...

. The two brothers were thereafter free to deal with Boso. The border between France and the Holy Roman Empire remained largely the same until the

Late Middle Ages The Late Middle Ages or Late Medieval Period was the period of European history lasting from AD 1300 to 1500. The Late Middle Ages followed the High Middle Ages and preceded the onset of the early modern period (and in much of Europe, the Ren ...

. Earlier Frankish partitions were: *

Treaty of Verdun The Treaty of Verdun (), agreed in , divided the Frankish Empire into three kingdoms among the surviving sons of the emperor Louis I, the son and successor of Charlemagne. The treaty was concluded following almost three years of civil war and ...

(843) * Treaty of Prüm (855) *

(870) Legal history of France Partition (politics) 880 Military history of the Carolingian Empire Ribemont Lotharingia