| Theobald I | |
|---|---|
 Miniature of Theobald with the arms of Navarre | |
| King of Navarre | |
| Reign | 1234 – 8 July 1253 |
| Predecessor | Sancho VII |
| Successor | Theobald II |
| Count of Champagne | |
| Reign | 30 May 1201 – 8 July 1253 |
| Predecessor | Theobald III |
| Successor | Theobald II of Navarre |
| Born | 30 May 1201 Troyes, County of Champagne |
| Died | 8 July 1253 (aged 52) Pamplona, Kingdom of Navarre |
| Burial | |
| Spouses | |
| Issue more... | |
| House | House of Blois |
| Father | Theobald III, Count of Champagne |
| Mother | Blanche of Navarre |
Theobald I (French: Thibaut, Spanish: Teobaldo; 30 May 1201 – 8 July 1253), also called the Troubadour and the Posthumous, was Count of Champagne (as Theobald IV) from birth and King of Navarre from 1234. He initiated the Barons' Crusade, was famous as a trouvère, and was the first Frenchman to rule Navarre.