In the early eleventh century, when a castle was built or possibly just enlarged at the site, it lay close to the border between the Kingdom of France and the Holy Roman Empire.
Lord Geoffrey III followed Count Henry I on the Second Crusade (1147–49) and afterwards was appointed seneschal of Champagne (1152), an office that became hereditary in his family.
[1] The Joinville family patronised the Cistercian monasteries of Clairvaux and La Crête, but their relationship with the nearby Benedictine house of Montier-en-Der was one of rivalry.
Since William had entered the church, the lordship passed to the fourth brother, Simon, while the fifth, Guy was given Sailly and established a cadet lineage.
[2] In the 19th century, Louis Philippe I, who would become the last French monarch, bestowed on his son François the title of prince of Joinville.