Louis married Blanche (Ivrea), of Castile in 1200. Blanche (daughter of Alfonso VIII (Ivrea), King of Castile and Eleanor (Plantagenet)) was born in 1188; died in 1252. [Group Sheet] [Family Chart]

1. Saint Louis IX (Capet), King of France was born in 1215; died in 1270.
2. Robert I (Capet), Count of Artois was born in 1216; died in 1250.
3. John (Capet), Count of Anjou and Maine was born in 1219; died circa 1226.
4. Alphonso (Capet), Count of Poitou and Toulouse was born in 1220; died in 1271.
5. Charles I (Capet), King of Naples was born in 1226; died in 1285.

Louis married Alix de Blois. Alix (daughter of Theobald II (de Blois), Count of Champagne) died in 1206. [Group Sheet] [Family Chart]