Simon of Joinville was a French knight, who became the Lord of Joinville from 1204 until his death in 1233. He was also the hereditary seneschal of the County of Champagne.

The War of the Succession of Champagne was a war from 1216 to 1222 between the nobles of the Champagne region of France, occurring within that region and also spilling over into neighboring duchies. The war lasted two years and de facto ended in 1218, but did not officially end until Theobald IV reached the age of majority in 1222, at which point his rivals abandoned their claims.